This is the 30th Symbol in the Protreptics, and is thus explained by
Iamblichus: “This Symbol signifies that it is not proper to divulse the
union and consent of the universe. And still further, it signifies this,
Be not envious, but philanthropic, and communicative: and from this it
exhorts us to philosophize. For philosophy alone among the sciences and
arts, is neither pained with the goods of others, nor rejoices in the
evils of neighbours, these being allied and familiar by nature, subject
to the like passions, and exposed to one common fortune. It likewise
evinces that the future is equally unlooked for by all men. Hence, it
exhorts us to sympathy and mutual love, and to be truly communicative,
as it becomes rational animals.”