Huangdi, a real person in ancient times, said: "I heard that there were real people in ancient times who raised their natural enemies, mastered the yin and yang, breathed the qi, and kept the gods independently." If their muscles are the same, they can live a long life without end. This is the way of life. "
This paragraph says that there is a kind of person who can be called a real person. He can grasp the changes of yin and yang of heaven and earth, breathe pure air, keep his mind inside, and his muscles are as full as when he was born, so his life can be as long as heaven and earth, and there is no focus. This is the effect of health preservation.
From the Middle Ages to the people: "In the Middle Ages, there were the most virtuous people. When they turned four, they died of vulgarity, concentrated their attention, marched between heaven and earth, extended their audio-visual reach, and benefited their lives. The strong ones also belonged to real people."
The meaning of this passage is that in the Middle Ages, there was a kind of person who could be called Zhiren. His morality was simple, he could be in harmony with the changes of the four seasons, stay away from the interference of the world, conserve his energy, preserve his dignity, live freely, and his audio-visual ability reached all directions, all of which could prolong his life. This kind of person is very similar to the real person in ancient times.
Secondly, saints "have saints and are in harmony with heaven and earth." From the perspective of the eight cardinal principles, he is secular, has no regrets, is unwilling to leave the world, is given a seal, is unwilling to look at vulgarity, does not work hard outside, has no distractions inside, takes pleasure as a service, takes self-satisfaction as a merit, keeps his form open and keeps his spirit. "
Secondly, there is a kind of person who can be called a saint. They can live quietly, obey the changes in all directions, live between the secular world without anger or resentment, act without being divorced from the secular world, but live quietly and happily, without the troubles of ordinary people, with concentrated spirit and a life span of hundreds of years.
Secondly, there are sages who follow the laws of heaven and earth, such as the image of the sun and the moon, distinguish the stars, follow the yin and yang, and make an appointment with the ancient Taoist at four o'clock, which can also prolong life and make great achievements.
Secondly, there is a kind of person who can become a saint. They can adapt to the changes of yin and yang in the four seasons of heaven, earth, sun, moon and stars, and regulate their bodies according to laws. Similar to ancient real people, they can live a long life.
In a word, the way for real people, wise men, saints and sages to live a long and healthy life in Huangdi Neijing lies in adapting to nature and nourishing their temperament.