In China it is regarded as the most influential medical work in existence and
is accorded first place among medical works. Written over four thousand years
ago, it stands as the basis of Chinese traditional medicine.
Here's some of the opening words, dealing with the wisdom of centuries past
almost long forgotten by then. They discuss the the right way of life, to
achieve the formula of perpetual youth and maintain a youthful body. He is
having a conversation with T'ien Shih (Chi Po) a medical sage.
The Yellow Emperor once addressed T'ien Shih (Chi Po) the inspired
teacher:
"I have heard that in ancient times the
people lived to be over a hundred years, and yet they remained active and did
not become decrepit in their activities. But nowadays people only reach only
half of that age. Is it because the world changes from generation to
generation? Or is it that mankind is becoming negligent of the laws of nature?
Chi Po answered:
"In ancient times those people who
understood Tao the way of self cultivation, patterned themselves upon the Yin
and the Yang. There was temperament in eating and drinking. Their hours of
rising and retiring were regular and not disorderly and wild. By these means
the ancients kept their bodies united with their souls, so as to fulfill their
allotted span completely, measuring unto a hundred years before the passed
away.
Now days people are not like this: they adopt reckless behavior. They
exhaust their vital forces, their cravings dissipate their true essence, they
do not know how to find true contentment within themselves, and they are not
skilled in the control of their spirits. They devote all their attention to
the amusement of their minds, thus cutting themselves off from the joys of
long life. Their rising and retiring is without regularity. For these reasons
they reach only half of the hundred years and they degenerate.
In the most ancient times the sages were tranquilly content in nothingness
and the true vital force accompanied them always, their spirit was
preserved within, thus how could illness come to them?
They felt happy under any condition. These men were pure of heart. No kind
of desire can tempt the eyes of those pure people and their minds cannot be
misled by excessiveness and evil. Thus they could live more than a hundred
years and remain active without becoming decrepit, because their virtue was
perfect and never imperiled.