CHAPTER XI

NEO-PLATONISM AND ITS RELATIONS TO ASTROLOGY AND THEURGY

Neo-Platonism and the occult—Plotinus on magic—The life of reason is

alone free from magic—Plotinus unharmed by magic—Invoking the demon of

Plotinus—Rite of strangling birds—Plotinus and astrology—The stars as

signs—The divine star-souls—How do the stars cause and signify?—Other

causes and signs than the stars—Stars not the cause of evil—Against

the astrology of the Gnostics—Fate and free-will—Summary of the

attitude of Plotinus to astrology—Porphyry’s _Letter to Anebo_—Its

main argument—Questions concerning divine natures—Orders of spiritual

beings—Nature of demons—The art of theurgy—Invocations and the power

of words—Magic a human art: theurgy divine—Magic’s abuse of nature’s

forces—Its evil character—Its deceit and unreality—Porphyry on modes

of divination—Iamblichus on divination—Are the stars gods?—Is there an

art of astrology?—Porphyry and astrology—Astrological images—Number

mysticism—Porphyry as reported by Eusebius—The emperor Julian on

theurgy and astrology—Julian and divination—Scientific divination

according to Ammianus Marcellinus—Proclus on theurgy—Neo-Platonic

account of magic borrowed by Christians—Neo-Platonists and alchemy.

[Sidenote: Neo-Platonism and the occult.]

That the Neo-Platonists were much given to the occult has been a

common impression among those who have written upon the period of the

decline of the Roman Empire, of the end of paganism, and the passing

of classical philosophy. This is perhaps in some measure the result

of Christian viewpoint and hostility; probably the Christians of the

period would seem equally superstitious to a modern Neo-Platonist. If

the lives of the philosophers by Eunapius sound like fairy tales,[1326]

what do the lives of the saints of the same period sound like? If

the Neo-Platonists were like our mediums, what were the Christian

exorcists like? But let us turn to the writings of the leading

Neo-Platonists themselves, the only accurate mirror of their views.

[Sidenote: Plotinus on magic.]

Plotinus,[1327] who lived from about 204 to 270 A. D. and is generally

regarded as the founder of Neo-Platonism, was apparently less given to

occult sciences than some of his successors.[1328] One of his charges

against the Gnostics[1329] is that they believe that they can move the

higher and incorporeal powers by writing incantations and by spoken

words and various other vocal utterances, all which he censures as

mere magic and sorcery. He also attacks their belief that diseases

are demons and can be expelled by words. This wins them a following

among the crowd who are wont to marvel at the powers of magicians, but

Plotinus insists that diseases are due to natural causes.[1330] Even

he, however, accepted incantations and the charms of sorcerers and

magicians as valid, and accounted for their potency by the sympathy

or love and hatred which he said existed between different objects in

nature, which operates even at a distance, and which is an expression

of one world-soul animating the universe.[1331]

[Sidenote: The life of reason is alone free from magic.]

Plotinus held further, however, that only the physical and irrational

side of man’s nature was affected by drugs and sorcery, just as “even

demons are not impassive in their irrational part,”[1332] and so

are to some extent subject to magic. But the rational soul may free

itself from all influence of magic.[1333] Moreover, remorselessly adds

the clear-headed Plotinus with a burst of insight that may well be

attributed to Hellenic genius, he who yields to the charms of love and

family affection or seeks political power or aught else than Truth and

true beauty, or even he who searches for beauty in inferior things; he

who is deceived by appearances, he who follows irrational inclinations,

is as truly bewitched as if he were the victim of magic and _goetia_

so-called. The life of reason is alone free from magic.[1334] Whereat

one is tempted to paraphrase a remark of Aelian[1335] and exclaim,

“What do you think of that definition of magic, my dear anthropologists

and sociologists and modern students of folk-lore?”

[Sidenote: Plotinus unharmed by magic.]

This immunity of the true philosopher and sincere follower of truth

from magic received illustration, according to Porphyry,[1336] in the

case of Plotinus himself, who suffered no harm from the magic arts

which his enemy, Alexandrinus Olympius, directed against him. Instead

the baleful defluxions from the stars which Olympius had tried to draw

down upon Plotinus were turned upon himself. Porphyry also states[1337]

that Plotinus was aware at the time of the “sidereal enchantments” of

Olympius against him. Incidentally the episode provides one more proof

of the essential unity of astrology and magic.

[Sidenote: Invoking the demon of Plotinus.]

Plotinus, indeed, was regarded by his admirers as divinely inspired,

as another incident from the _Life_ by Porphyry will illustrate.[1338]

An Egyptian priest had little difficulty in persuading Plotinus, who

although of Roman parentage had been born in Egypt, to allow him to try

to invoke his familiar demon. Plotinus was then teaching in Rome where

he resided for twenty-six years, and the temple of Isis was the only

pure place in the city which the priest could find for the ceremony.

When the invocation had been duly performed, there appeared not a

mere demon but a god. The apparition was not long enduring, however,

nor would the priest permit them to question it, on the ground that

one of the friends of Plotinus present had marred the success of the

operation. This man had feared he might suffer some injury when the

demon appeared and as a counter-charm had brought some birds which he

held in his hands, apparently by the necks, for at the critical moment

when the apparition appeared he suffocated them, whether from fright or

from envy of Plotinus Porphyry declares himself unable to state.

[Sidenote: The rite of strangling birds.]

This practice of grasping birds by the necks in both hands is shown

by a number of works of art to have been a custom of great antiquity.

We may see a winged Gorgon strangling a goose in either hand upon

a plate of the seventh century B.C. from Rhodes now in the British

Museum.[1339] A gold pendant of the ninth century B.C. from Aegina, now

also in the British Museum, consists of a figure holding a water-bird

by the neck in either hand, while from its thighs pairs of serpents

issue on whose folds the birds stand with their bills touching the

fangs of the snakes.[1340] There also is a figure of a winged goddess

grasping two water-birds by the necks upon an ivory fibula excavated at

Sparta.[1341]

[Sidenote: Plotinus and astrology.]

Porphyry also tells us in the _Life_ that Plotinus devoted considerable

attention to the stars and refuted in his writings the unwarrantable

claims of the casters of horoscopes.[1342] Such passages are found

in the treatises on fate and on the soul, while one of his treatises

is devoted entirely to the question, “Whether the stars effect

anything?”[1343] This was one of four treatises which Plotinus a little

before his death sent to Porphyry, and which are regarded as rather

inferior to those composed by him when in the prime of life. In the

next century the astrologer, Julius Firmicus Maternus, regards Plotinus

as an enemy of astrology and represents him as dying a horrible and

loathsome death from gangrene.[1344]

[Sidenote: The stars as signs.]

As a matter of fact the criticisms made by Plotinus were not

necessarily destructive to the art of astrology, but rather suggested a

series of amendments by which it might be made more compatible with a

Platonic view of the universe, deity, and human soul. These amendments

also tended to meet Christian objections to the art. His criticisms

were not new; Philo Judaeus had made similar ones over two centuries

before.[1345] But the great influence of Plotinus gave added emphasis

to these criticisms. For instance, the point made by him several times

that the motion of the stars “does not cause everything but signifies

the future concerning each”[1346] man and thing, is noted by Macrobius

both in the _Saturnalia_[1347] and the _Dream of Scipio_;[1348] while

in the twelfth century John of Salisbury, arguing against astrology,

fears that its devotees will take refuge in the authority of Plotinus

and say that they detract nothing from the Creator’s power, since

He established once for all an unalterable natural law and disposed

all future events as He foresaw them. Thus the stars are merely His

instruments.[1349]

[Sidenote: The divine star-souls.]

But let us see what Plotinus says himself rather than what others took

to be his meaning. Like Plato, who regarded the stars as happy, divine,

and eternal animals, Plotinus not only believes that the stars have

souls but that their intellectual processes are far above the frailties

of the human mind and nearer the omniscience of the world-soul. Memory,

for example, is of no use to them,[1350] nor do they hear the prayers

which men address to them.[1351] Plotinus often calls them gods. They

are, however, parts of the universe, subordinate to the world-soul,

and they cannot alter the fundamental principles of the universe, nor

deprive other beings of their individuality, although they are able to

make other beings better or worse.[1352]

[Sidenote: How do the stars cause and signify?]

In his discussion of problems concerning the soul Plotinus says that

“it is abundantly evident ... that the motion of the heavens affects

things on earth and not only in bodies but also the dispositions of

the soul,”[1353] and that each part of the heavens affects terrestrial

and inferior objects. He does not, however, think that all this

influence can be accounted for “exclusively by heat or cold,”—perhaps

a dig at Ptolemy’s _Tetrabiblos_.[1354] He also objects to ascribing

the crimes of men to the will of the stars or every human act to a

sidereal decision,[1355] and to speaking of friendships and enmities

as existing between the planets according as they are in this or that

aspect towards one another.[1356] If then the admittedly vast influence

of the stars cannot be satisfactorily accounted for either as material

effects caused by them as bodies or as voluntary action taken by them,

how is it to be explained? Plotinus accounts for it by the relation of

sympathy which exists between all parts of the universe, that single

living animal, and by the fact that the universe expresses itself in

the figures formed by the movements of the celestial bodies, which

“exert what influence they do exert on things here below through

contemplation of the intelligible world.”[1357] These figures, or

constellations in the astrological sense, have other powers than those

of the bodies which participate in them, just as many plants and

stones “among us” have marvelous occult powers for which heat and cold

will not account.[1358] They both exert influence effectively and are

signs of the future through their relation to the universal whole. In

many things they are both causes and signs, in others they are signs

only.[1359]

[Sidenote: Other causes and signs than the stars.]

For Plotinus, however, the universe is not a mechanical one where

but one force prevails, namely, that produced by or represented by

the constellations. The universe is full of variety with countless

different powers, and the whole would not be a living animal unless

each living thing in it lived its own life, and unless life were

latent even in inanimate objects. It is true that some powers are more

effective than others, and that those of the sky are more so than those

of earth, and that many things lie under their power. Nevertheless

Plotinus sees in the reproduction of life and species in the universe a

force independent of the stars. In the generation of any animal, for

example, the stars contribute something, but the species must follow

that of its forebears.[1360] And after they have been produced or

begotten, terrestrial beings add something of their own. Nor are the

stars the sole signs of the future. Plotinus holds that “all things are

full of signs,” and that the sage can not merely predict from stars or

birds, but infer one thing from another by virtue of the harmony and

sympathy existing between all parts of the universe.[1361]

[Sidenote: Stars not the cause of evil.]

Nor can the gods or stars be said to cause evil on earth, since their

influence is affected by other forces which mingle with it. Like the

earlier Jewish Platonist, Philo, Plotinus denies that the planets are

the cause of evil or change their own natures from good to evil as

they enter new signs of the zodiac or take up different positions in

relation to one another. He argues that they are not changeable beings,

that they would not willingly injure men, or, if it is contended that

they are mere bodies and have no wills, he replies that then they can

produce only corporeal effects. He then solves the problem of evil in

the usual manner by ascribing it to matter, in which reason and the

celestial force are received unevenly, as light is broken and refracted

in passing through water.[1362]

[Sidenote: Against the astrology of the Gnostics.]

Plotinus repeats much the same line of argument in his book against the

Gnostics, where he protests against “the tragedy of terrors which they

think exists in the spheres of the universe,”[1363] and the tyranny

they ascribe to the heavenly bodies. His belief is that the celestial

spheres are in perfect harmony both with the universe as a whole and

with our globe, completing the whole and constituting a great part of

it, supplying beauty and order. And often they are to be regarded as

signs rather than causes of the future. Their natures are constant,

but the sequence of events may be varied by chance circumstances,

such as different hours of nativities, place of residence, and the

dispositions of individual souls. Amid all this diversity one must also

expect both good and evil, but not on that account call nature or the

stars either evil themselves or the cause of evil.

[Sidenote: Fate and free-will.]

As the allusion just made in the preceding paragraph to “the

dispositions of individual souls” shows, Plotinus made a distinction

between the extent of the control exercised by the stars over

inanimate, animate, and rational beings. The stars signify all things

in the sensible world but the soul is free unless it slips and is

stained by the body and so comes under their control. Fate or the force

of the stars is like a wind which shakes and tosses the ship of the

body in which the soul makes its passage. Man as a part of the world

does some things and suffers many things in accordance with destiny.

Some men become slaves to this world and to external influences, as

if they were bewitched. Others look to their inner souls and strive

to free themselves from the sensible world and to rise above demonic

nature and all fate of nativities and all necessity of this world, and

to live in the intelligible world above[1364].

[Sidenote: Summary of the attitude of Plotinus to astrology.]

Thus Plotinus arrives at practically what was to be the usual Christian

position in the middle ages regarding the influence of the stars,

maintaining the freedom of the human will and yet allowing a large

field to astrological prediction. He is evidently more concerned to

combat the notion that the stars cause evil or are to be feared as

evil powers than he is to combat the belief in their influence and

significations. His speaking of the stars both as signs and causes in

a way doubles the possibility of prediction from them. If he attacked

the language used by astrologers of the planets, and perhaps to a

certain extent the technique of their art, he supported astrology by

reconciling the existence of evil and of human freedom with a great

influence of the stars and by his emphasis upon the importance of

the figures made by the movements of the heavenly bodies above any

purely physical effects of their bodies as such. Thus he reinforced

the conception of occult virtue, always one of the chief pillars, if

not the chief support, of occult science and magic. On the other hand,

men were not likely to reform a language and technique sanctioned

by as great an astronomer as Ptolemy merely because a Neo-Platonist

questioned its propriety.

[Sidenote: Porphyry’s _Letter to Anebo_.]

Although Plotinus denied that diseases were due to demons, we once

heard him speak of “demonic nature,” and one of the _Enneads_ discusses

_Each man’s own demon_. Here, however, the discussion is limited to

the power presiding in each human soul, and nothing is said of magic.

For the connection of demons with magic and for the art of theurgy we

must turn to the writings of Porphyry and Iamblichus, and especially

to _The Letter to Anebo_ of Porphyry, who lived from about 233 to 305,

and the reply thereto of the master Abammon, a work which is otherwise

known as _Liber de mysteriis_[1365]. The attribution of the latter

work to Iamblichus, who died about 330, is based upon an anonymous

assertion prefixed to an ancient manuscript of Proclus and upon the

fact that Proclus himself quotes a passage from the _De mysteriis_ as

the words of Iamblichus. This attribution has been questioned, but if

not by Iamblichus, the work seems to be at least by some disciple of

his with similar views[1366]. Other works of Iamblichus are largely

philosophical and mathematical; among the chief works of Porphyry,

apart from his literary work in connection with Plotinus, were his

commentaries on Aristotle and fifteen books against the Christians.

[Sidenote: Its main argument.]

The _Letter to Anebo_ inquires concerning the nature of the gods,

the demons, and the stars; asks for an explanation of divination and

astrology, of the power of names and incantations; and questions the

employment of invocations and sacrifice. Other topics brought up are

the rule of spirits over the world of nature, partitioned out among

them for this purpose; the divine inspiration or demoniacal possession

of human beings; and the occult sympathy between different things in

the material universe. In especial the art of theurgy, a word said to

be used now for the first time by Porphyry,[1367] is discussed. It

may be roughly defined for the moment as a sort of pious necromancy

or magical cult of the gods. Porphyry raises various objections to

the procedure and logic of the theurgists, diviners, enchanters, and

astrologers, which Iamblichus, as we shall henceforth call the author

of the _De mysteriis_ as a matter of convenience if not of certainty,

endeavors to answer, and to justify the art of theurgy.

[Sidenote: Questions concerning divine natures.]

We may first note the theory of demons which is elicited from

Iamblichus in response to Porphyry’s trenchant and searching questions.

The latter, declaring that ignorance and disingenuousness concerning

divine natures are no less reprehensible than impiety and impurity,

demands a scientific discussion of the gods as a holy and beneficial

act. He asks why, if the divine power is infinite, indivisible, and

incomprehensible, different places and different parts of the body

are allotted to different gods. Why, if the gods are pure intellects,

they are represented as having passions, are worshiped with phallic

ritual, and are tempted with invocations and sacred offerings? Why

boastful speech and fantastic action are taken as indications of the

divine presence; and why, if the gods dwell in the heavens, theurgists

invoke only terrestrial and subterranean deities? How superior beings

can be invoked with commands by their inferiors, why the Sun and Moon

are threatened, why the man must be just and chaste who invokes spirits

in order to secure unjust ends or gratify lust, and why the worshiper

must abstain from animal food and not touch a corpse when sacrifices

to the gods consist of the bodies of dead victims? Porphyry wishes

further an explanation of the various _genera_ of gods, visible and

invisible, corporeal and incorporeal, beneficent and malicious, aquatic

and aerial. He wants to know whether the stars are not gods, how gods

differ from demons, and what the distinction is between souls and

heroes.

[Sidenote: Orders of spiritual beings.]

Iamblichus in reply states that as heroes are elevated above souls,

so demons are inferior and subservient to the gods and translate

the infinite, ineffable, and invisible divine transcendent goodness

into terms of visible forms, energy, and reason.[1368] He further

distinguishes “the etherial, empyrean, and celestial gods,” and angels,

archangels, and archons.[1369] As for corporeal, visible, aerial, and

aquatic gods, he affirms that the gods have no bodies and no particular

allotments of space, but that natural objects participate in or are

related to the gods etherially or aerially or aquatically, each

according to its nature.[1370] “The celestial divinities,” for example,

“are not comprehended by bodies but contain bodies in their divine

lives and energies. They are not themselves converted to body, but

they have a body which is converted to its divine cause, and that body

does not impede their intellectual and incorporeal perfection.”[1371]

Iamblichus denies that there are any maleficent gods, saying that “it

is much better to acknowledge our inability to explain the occurrence

of evil than to admit anything impossible and false concerning the

gods.”[1372] But he admits the existence of both good and evil demons

and makes of the latter a convenient scapegoat upon whom to saddle any

inconsistencies or impurities in religious rites and magical ceremony.

[Sidenote: Nature of demons.]

Iamblichus does not, however, hold the view of Apuleius that demons

are subject to passions. They are impassive and incapable of

suffering.[1373] He scorns the notion that even the worst demons can

be allured by the vapors of animal sacrifice or that petty mortals can

supply such beings with anything;[1374] it is rather in the consumption

of foul matter by pure fire in the act of sacrifice that they take

delight. Demons are not, however, like the gods entirely separated

from bodies. The world is divided up into prefectures among them and

they are more or less inseparable from and identified with the natural

objects which they govern.[1375] Thus they may serve to enmesh the

soul in the bonds of matter and of fate, and to afflict the body with

disease.[1376] Also the evil demons “are surrounded by certain noxious,

blood-devouring, and fierce wild beasts,” probably of the type of

vampires and _empousas_.[1377] Iamblichus further holds that there is

a class of demons who are without judgment and reason, each of whom

has some one function to perform and is not adapted to do anything

else.[1378] Such demons or forces in nature men may well address as

superiors in invoking them, since they are superior to men in their

one special function; but when they have once been invoked, man as a

rational being may also well issue commands to them as his irrational

inferiors.[1379]

[Sidenote: The art of theurgy.]

Iamblichus also undertakes the defense of theurgy and carefully

distinguishes it from magic, as we shall soon see. It is also different

from science, since it does not merely employ the physical forces of

the natural universe,[1380] and from philosophy, since its ineffable

works are beyond the reach of mere intelligence, and those who

merely philosophize theoretically cannot hope for a theurgic union

or communion with the gods.[1381] Even theurgists cannot as a rule

endure the light of spiritual beings higher than heroes, demons, and

angels,[1382] and it is an exceedingly rare occurrence for one of them

to be united with the supramundane gods.[1383] This theurgy, or “the

art of divine works,” operates by means of “arcane signatures” and

“the power of inexplicable symbols.”[1384] It is thus that Iamblichus

explains away most of the details in sacred rites and sacrifices to

which Porphyry had objected as obscene or material and as implying

that the gods themselves were passive and passionate. They are mystic

symbols, “consecrated from eternity” for some hidden reason “which

is more excellent than reason.”[1385] Occult virtues indeed! We have

already heard Iamblichus state that natural objects participate in

or are related to the gods etherially or aerially or aquatically;

theurgists therefore quite properly employ in their art certain stones,

herbs, aromatics, and sacred animals.[1386] By employing such potent

symbols mere man takes on such a sacred character himself that he is

able to command many spiritual powers.[1387]

[Sidenote: Invocations and the power of words.]

Invocations and prayers are also much used in theurgical operations.

But such invocations do not draw down the impassive and pure gods

to this world; rather they purify those who employ them from their

passions and impurity and exalt them to union with the pure and the

divine.[1388] These prayers are symbolic, too. They do not appeal to

human passions or reason, “for they are perfectly unknown and arcane

and are alone known to the God whom they invoke.”[1389] In another

passage[1390] Iamblichus replies to Porphyry’s objection that such

prayers are often composed of meaningless words and names without

signification by declaring—somewhat inconsistently with his previous

assertion that these invocations are “perfectly unknown”—that some of

the names “which we can scientifically analyze” comprehend “the whole

divine essence, power and order.” Moreover, if translated into another

language, they do not have exactly the same meaning, and even if they

do, they no longer retain the same power as in the original tongue.

We shall meet a similar passage concerning the power of words and

divine names in the church father Origen who lived earlier in the third

century than Porphyry and Iamblichus. Iamblichus concludes that “it is

necessary that ancient prayers ... should be preserved invariably the

same.”[1391]

[Sidenote: Magic a human art: theurgy divine.]

Neither Porphyry nor Iamblichus, I believe, employs the word, “magic,”

but they both often allude to its practitioners and methods by such

expressions as “jugglers” and “enchanters” or by contrasting what is

done “artificially” or by means of art with theurgical operations.

In the last case the distinction is between what on the one hand is

regarded as a divine mystery or revelation and what on the other hand

is looked upon as a mere human art and contrivance. And “nothing ...

which is fashioned by human art is genuine and pure.”[1392] Christian

writers drew a like distinction between prophecy or miracle and

divination or magic. Sometimes, however, Iamblichus speaks of theurgy

itself as an art, an involuntary admission of the close resemblance

between its methods and those of magic. We are also told that if the

theurgist makes a slip in his procedure, he thereby reduces it to the

level of magic.[1393]

[Sidenote: Magic’s abuse of nature’s forces.]

Another distinction is that theurgy aims at communion with the

gods while magic has to do rather with “the physical or corporeal

powers of the universe.”[1394] Both Porphyry and Iamblichus believed

that harmony, sympathy, and mutual attraction existed between the

various objects in the universe, which Iamblichus asserted was one

animal.[1395] Thus it is possible for man to draw distant things to

himself or to unite them to, or separate them from, one another.[1396]

But art may also use this force of sympathy between objects in an

extreme and unseemly manner, and this disorderly forcing of nature, we

are left to infer, constitutes an essential feature of magic, whose

procedure is not truly natural or scientific.

[Sidenote: Its evil character.]

Magic not only disorders the law and harmony, and makes a perverse and

contrary use of natural forces. Its practitioners are also represented

as aiming at evil ends and as themselves of evil character.[1397]

They may try by their illicit and impure procedure to have intercourse

with the gods or with pure spirits, but they are unable to accomplish

this. All that they succeed in doing is to secure the alliance of

evil demons by associating with whom they become more depraved than

ever. Such wicked demons may pose as angels of light by requiring that

those who invoke them should be just or chaste, but afterwards they

show their true colors by assisting in crimes and the gratification

of lusts.[1398] It is they, too, who assuming the guise of superior

spirits are responsible for the boastful and arrogant utterances

of which Porphyry complained in persons supposed to be divinely

inspired.[1399]

[Sidenote: Its deceit and unreality.]

Finally magic is unstable and fantastic. “The imaginations artificially

produced by enchantment” are not real objects. Those who foretell the

future by “standing on characters” are no theurgists, but employ a

superficial, false, and deceptive procedure which can attract only

evil demons.[1400] These demons are themselves deceitful and produce

“fictitious images.”[1401] Porphyry in the _Letter to Anebo_ also

alluded to the frauds of “jugglers.” Although the attitude both of

Porphyry and Iamblichus is thus professedly unfavorable to the magic

arts, we find that one of Iamblichus’s disciples, named Sopater,

was executed under Constantine on a charge of having charmed the

winds.[1402]

[Sidenote: Porphyry on modes of divination.]

How is divination to be placed in reference to magic and theurgy?

Porphyry had inquired concerning various methods of divination: in

sleep, in trances, and when fully conscious; in ecstasy, in disease,

and in states of mental aberration or enchantment. He mentioned

divination on hearing drums and cymbals, by drinking water and other

potions, by inhaling vapor; divination in darkness, in a wall, in the

open air or in the sunlight; by observing entrails or the flight of

birds or the motion of the stars, or even by means of meal. Yet other

modes of determining the future which he lists are by characters,

images, incantations, and invocations, with which the use of stones and

herbs is often combined. These details make it evident how impossible

it is to draw any dividing line between the methods of magic and

divination, and Porphyry himself states that those who invoke the gods

concerning the future not only “have about them stones and herbs,”

but are able to bind and to free from bonds, to open closed doors,

and to change men’s intentions. Among the virtues of parts of animals

mentioned in his treatise upon abstinence from animal food are the

powers of divination which may be obtained by eating the heart of a

hawk or crow.[1403]

[Sidenote: Iamblichus on divination.]

Porphyry states that all diviners attribute their predictions to gods

or demons, but that he wonders if foreknowledge may not be a power of

the human soul or perhaps accountable for by the sympathy which exists

between different parts of the universe. Iamblichus holds, however,

that divination is neither a human art nor the work of nature but

of divine origin.[1404] He perhaps regards it as little more than a

branch of theurgy. He distinguishes between human dreams which are

sometimes true, sometimes false, and dreams and visions divinely

sent.[1405] If one is able to predict the future by drinking water,

it is because the water has been divinely illuminated.[1406] That

we can predict when the mind is diseased and disordered, and that

stupid or simple-minded men are often better able to prophesy than the

wise and learned, are for him but further proofs that foreknowledge

is a divine gift and not a human science, while divination by such

means as rods, pebbles, grains of corn and wheat simply excites the

more his pious admiration at the greatness of divine power.[1407] He

disapproves of divination by standing on characters,[1408] but sees no

reason why divination in darkness, in a wall, or in sunlight, or by

potions and incantations, may not be divinely directed. He will not,

however, connect the disordered imaginations excited by disease with

divine presentiments.[1409] From true divination he also separates

the “natural prescience” of certain animals whose acuteness of sense

or occult sympathy with other parts and forces of nature enables them

to perceive some coming events before men do. Their power resembles

prophecy, “yet falls short of it in stability and truth.”[1410] Augury

is an art whose conjectures have great probability, but they are based

upon divine signs or portents effected in nature by the agency of

demons.[1411]

[Sidenote: Are the stars gods?]

The stars are on a totally different plane from the other substances

employed in divination. To Porphyry’s question whether they are not

gods Iamblichus is not content to reply that the celestial divinities

comprehend these heavenly bodies and that the bodies in no way impede

“their intellectual and incorporeal perfection.”[1412] He must needs go

on to argue that the stars themselves, as simple indivisible bodies,

unchanging in quality and uniform in movement, closely approach to “the

incorporeal essence of the gods.” He then triumphantly if illogically

concludes, “Thus therefore the visible celestials are all of them gods

and after a certain manner incorporeal.” We may add the opinion of

Chaeremon and others, noted by Porphyry, that the only gods were the

physical ones of the Egyptians and the planets, signs of the zodiac,

decans, and horoscope; all religious myths were explained by Chaeremon

as astrological allegories.

[Sidenote: Is there an art of astrology?]

Porphyry objected that those who thus reduce religion to astrology

submit everything to fate and leave the human soul no freedom, and

furthermore that in any case astrology is an unattainable science.

Iamblichus defends it against these objections, insisting that the

universe is divided under the rule of planets, signs, and decans;[1413]

that the Egyptians do not make everything physical but ascribe

two souls to man, one of which obeys the revolutions of the stars,

while the other is intellectual and free;[1414] and that there is a

systematic art of astrology based on divine revelation and the long

observations of the Chaldeans, although like any other science it may

at times degenerate and become contaminated by error.[1415] Iamblichus

further regards as ridiculous the contention of those “who ascribe

depravity to the celestial bodies because their participants sometimes

produce evil.”[1416] In the brief separate treatise, _De fato_,[1417]

he again holds that all things are bound by the indissoluble chain of

necessity which men call fate, but that the gods can loose the bonds

of fate, and that the human mind, too, has power to rise above nature,

unite with the gods, and enjoy eternal life.

[Sidenote: Porphyry and astrology.]

Whether Porphyry in his other extant works evidences a belief

in astrology or not, and whether he wrote an _Introduction to

the Tetrabiblos_ or astrological handbook of Ptolemy, has been

disputed.[1418] This _Introduction_ ascribed to Porphyry was much cited

by subsequent astrologers[1419] and was printed in 1559 together with

a much longer anonymous commentary on the _Tetrabiblos_ which some

ascribe to Proclus.[1420]

[Sidenote: Astrological images.]

Towards astrological images at least, Porphyry shows himself in the

_Letter to Anebo_ more favorable than Iamblichus, saying, “Nor are the

artificers of efficacious images to be despised, for they observe the

motion of celestial bodies.” Iamblichus, on the other hand, rather

grudgingly admits that “the image-making art attracts a certain very

obscure genesiurgic portion from the celestial effluxions.”[1421] He

seems to have the same feeling against images as against characters,

perhaps regarding both as bordering upon idolatry.[1422]

[Sidenote: Number mysticism.]

Plotinus, Porphyry, and Iamblichus were all given to number mysticism.

The sixth book of the sixth _Ennead_ is entirely devoted to this

subject, while Porphyry and Iamblichus both wrote _Lives_ of Pythagoras

and treatises upon his doctrine of number.

[Sidenote: Porphyry as reported by Eusebius.]

Other works by Porphyry than the _Letter to Anebo_ are cited or quoted

a good deal by Eusebius in _Praeparatio evangelica_, especially

his Περὶ τῆς ἐκ λογίων φιλοσοφίας, but the extracts are made for

Eusebius’s own purposes, which are to discredit pagan religion,

and neither express Porphyry’s complete thought nor probably even

tend to prove his original point. Besides showing that Porphyry was

inconsistent in distinguishing the different victims to be sacrificed

to terrestrial and subterranean, aerial, celestial, and sea gods in the

above-mentioned work, when in his _De abstinentia a rebus animatis_ he

held that beings who delighted in animal sacrifice were no gods but

mere demons, Eusebius quotes him a good deal to show that the pagan

gods were nothing but demons, that they themselves might be called

magicians and astrologers, that they loved characters, and that they

made their predictions of the future not from their own foreknowledge

but from the stars by the art of astrology, and that like men they

could not even always read the decrees of the stars aright. The belief

is also mentioned that the fate foretold from the stars may be avoided

by resort to magic.[1423]

[Sidenote: The Emperor Julian on theurgy and astrology.]

The Emperor Julian was an enthusiastic follower of Iamblichus whom

he praises[1424] in his _Hymn to the Sovereign Sun_ delivered at the

Saturnalia of 361 A. D. He also describes “the blessed theurgists” as

able to comprehend unspeakable mysteries which are hidden from the

crowd, such as Julian the Chaldean prophesied concerning the god of

the seven rays.[1425] The emperor tells us that from his youth he was

regarded as over-curious (περιεργότερον, a word which almost implies

the practice of magic) and as a diviner by the stars (ἀστρόμαντιν). His

_Hymn to the Sun_ contains a good deal of astrological detail, speaks

of the universe as eternal and divine, and regards planets, signs, and

decans as “the visible gods.” In short, “there is in the heavens a

great multitude of gods.”[1426] The Sun, however, is superior to the

other planets, and as Aristotle has pointed out “makes the simplest

movement of all the heavenly bodies that travel in a direction opposite

to the whole.”[1427] The Sun is also the link between the visible

universe and the intelligible world, and Julian infers from his middle

station among the planets that he is also king among the intellectual

gods.[1428] For behind his visible self is the great Invisible. He

frees our souls entirely from the power of “Genesis,” or the force of

the stars exercised at nativity, and lifts them to the world of the

pure intellect.[1429]

[Sidenote: Julian and divination.]

Julian believed in almost every form of pagan divination as well as

in astrology. To the oracles of Apollo he ascribed the civilizing of

the greater part of the world through the foundation of Greek colonies

and the revelation of religious and political law.[1430] The historian

Ammianus Marcellinus[1431] tells us that Julian was continually

inspecting entrails of victims and interpreting dreams and omens, and

that he even proposed to re-open a prophetic fountain whose predictions

were supposed to have enabled Hadrian to become emperor, after which

that emperor blocked it up from fear that someone else might supplant

him through its instrumentality. In another passage[1432] he defends

Julian from the charge of magic, saying, “Inasmuch as malicious persons

have attributed the use of evil arts to learn the future to this ruler

who was a learned inquirer into all branches of knowledge, we shall

briefly indicate how a wise man is able to acquire this by no means

trivial variety of learning. The spirit behind all the elements, seeing

that it is incessantly and everywhere active in the prophetic movement

of perennial bodies, bestows upon us the gift of divination by the

different arts which we employ; and the forces of nature, propitiated

by varied rites, as from exhaustless springs provide mankind with

prophetic utterances.”

[Sidenote: Scientific divination.]

Ammianus thus regards the arts of divination as serious sciences

based upon natural forces, although of course in the characteristic

Neo-Platonic way of thinking he confuses the spiritual and physical and

substitutes propitiatory rites for scientific experiments. His phrase,

“the prophetic movement of perennial bodies” almost certainly means

the stars and shows his belief in astrology. In another passage[1433]

he indicates the widespread trust in astrology among the Roman nobles

of his time, the later fourth century, by saying that even those “who

deny that there are superior powers in the sky,” nevertheless think it

imprudent to appear in public or dine or bathe without having first

consulted an almanac as to the whereabouts of Mercury or the exact

position of the moon in Cancer. The passage is satirical, no doubt, but

Ammianus probably objects quite as much to their disbelief in superior

powers in the sky as he does to the excess of their superstition.

That astrology and divination may be studied scientifically he again

indicates in a description of learning at Alexandria. Besides praising

the medical training to be had there, and mentioning the study of

geometry, music, astronomy, and arithmetic, he says, “In addition to

these subjects they cultivate the science which reveals the ways of the

fates.”[1434]

[Sidenote: Proclus on theurgy.]

Iamblichus’s account of theurgy is repeated in more condensed form by

Proclus (412-485) in a brief treatise or fragment which is extant only

in its Latin translation by the Florentine humanist Ficinus, entitled

_De sacrificio et magia_.[1435] Neither magic nor theurgy, however, is

mentioned by name in the Latin text. Proclus states that the priests

of old built up their sacred science by observing the sympathy existing

between natural objects and by arguing from manifest to occult powers.

They saw how things on earth were associated with things in the heavens

and further discovered how to bring down divine virtue to this lower

world by the force of likeness which binds things together. Proclus

gives several examples of plants, stones, and animals which evidence

such association. The cock, for instance, is reverenced by the lion

because both are under the same planet, the sun, but the cock even

more so than the lion. Therefore demons who appear with the heads of

lions (_leonina fronte_) vanish suddenly at the sight of a cock unless

they chance to be demons of the solar order. After thus indicating

the importance of astrology as well as occult virtue in theurgy or

magic, Proclus tells how demons are invoked. Sometimes a single herb

or stone “suffices for the divine work”; sometimes several substances

and rites must be combined “to summon that divinity.” When they had

secured the presence of the demons, the priests proceeded, partly under

the instruction of the demons and partly by their own industrious

interpretation of symbols, to a study of the gods. “Finally, leaving

behind natural objects and forces and even to a great extent the

demons, they won communion with the gods.”

[Sidenote: Neo-Platonic account of magic borrowed by Christians.]

Despite the writings of Porphyry and other Neo-Platonists against

Christianity, much use was made by Christian theologians of the fourth

and fifth centuries of the Neo-Platonic accounts of magic, astrology,

and divination, especially of Porphyry’s _Letter to Anebo_. Eusebius

in his _Praeparatio Evangelica_[1436] made large extracts from it on

these themes and also from Porphyry’s work on the Chaldean oracles.

Augustine in _The City of God_[1437] accepted Porphyry as an authority

on the subjects of theurgy and magic. On the other hand, we do not find

the Christian writers repeating the attitude of Plotinus that the life

of reason is alone free from magic, except as they substitute the word

“Christianity” for “the life of reason.”

[Sidenote: Neo-Platonists and alchemy.]

The Neo-Platonists showed some interest in alchemy as well as in

theurgy and astrology. Berthelot published in his _Collection des

Alchimistes Grecs_ “a little tract of positive chemistry” which is

extant under the name of Iamblichus; and Proclus treated of the

relations between the metals and planets and the generation of the

metals under the influence of the stars.[1438] Of Synesius, who was

both a Neo-Platonist and a Christian bishop, and who seems to have

written works of alchemy, we shall treat in a later chapter.

A History of Magic and Experimental Science, Volume 1 (of 2) During the First Thirteen Centuries of Our Era · 第 12 / 23 章