If there is anything that we all enjoy, it is waking up on a bright
spring morning and seeing the sunlight pouring into the room. You all
know the poem beginning,--
"I remember, I remember
The house where I was born;
The little window where the sun
Came peeping in at morn."
You are feeling fresh and rested and happy after your good night's
sleep and you are eager to be up and out among the birds and the
flowers.
You are perfectly right in being glad to say "Good morning" to the
sun, for he is one of the best friends you have. Doesn't he make the
flowers blossom, and the trees grow? And he makes the apples redden,
too, and the wheat-ears fill out, and the potatoes grow under the
ground, and the peas and beans and melons and strawberries and
raspberries above it. All these things that feed you and keep you
healthy are grown by the heat of the sun. So if it were not for the
sunlight we should all starve to death.
While sunlight is pouring down from the sun to the earth, it is
warming and cleaning the air, burning up any poisonous gases, or
germs, that may be in it. By heating the air, it starts it to rising.
If you will watch, you can see the air shimmering and rising from an
open field on a broiling summer day, or wavering and rushing upward
from a hot stove or an open register in winter. Hold a little feather
fluff or blow a puff of flour above a hot stove, and it will go
sailing up toward the ceiling. As the heated air rises, the cooler air
around rushes in to fill the place that it has left, and the outdoor
"drafts" are made that we call _winds_.
These winds keep the air moving about in all directions constantly,
like water in a boiling pot, and in this way keep it fresh and pure
and clean. If it were not for this, the air would become foul and damp
and stagnant, like the water in a ditch or marshy pool. So the Sun
God, as our ancestors in the Far East used to call him thousands of
years ago, not only gives us our food to eat, but keeps the air fit
for us to breathe.
In still another way the sun is one of our best friends; for his rays
have the wonderful power, not only of causing plants that supply us
with food--the Green Plants, as we call them--to grow and flourish,
but at the same time of withering and killing certain plants that do
us harm. These plants--the Colorless Plants, we may call them--are the
_molds_, the _fungi_, and the _bacteria_, or _germs_. You know how a
pair of boots put away in a dark, damp closet, or left down in the
cellar, will become covered all over with a coating of gray mold. Mold
grows rapidly in the dark. Just so, these other Colorless Plants,
which include most of our disease germs, grow and flourish in the
dark, and are killed by sunlight. That is why no house, or room, is
fit to live in, into which the sunlight does not pour freely sometime
during the day. The more sunlight you can bring into your bedrooms and
your playrooms and your schoolrooms, except during the heat of the day
in the summer time, the better they will be. The Italians have a very
shrewd and true old proverb about houses and light: "Where the
sunlight never comes, the doctor often does."
So you see that Nature is guiding you in the right direction when she
makes you love and delight in the bright, warm, golden sunlight; for
it is one of the very best friends that you have--indeed, you couldn't
possibly live without it.
In one sense, in fact, though this may be a little harder for you to
understand, you are sunlight yourselves; for the power in your muscles
and nerves that makes you able to jump and dance and sing and laugh
and breathe is the sunlight which you have eaten in bread and apples
and potatoes, and which the plants had drunk in through their leaves
in the long, sunny days of spring and summer.
So throw up your blinds and open your windows wide to the sunlight
every morning; and let the sunlight pour in all day long, except only
while you are reading or studying--when the dazzling light may hurt
your eyes--and for six or seven of the hottest hours of the day in
summer time. Perhaps your mothers will object that the sunlight will
fade the carpets, or spoil the furniture; but it will put far more
color into your faces than it will take out of the carpets. If you are
given the choice of a bedroom, choose a room that faces south or
southeast or southwest, never toward the north.