In Huangdi Neijing, the thought of correspondence between heaven and man has long existed. In the article Su Wen-Bao Quan's Theory of Ming Xing, it is discussed that "the life of man and heaven and earth can be achieved in four seasons". Since people are born in nature, they should be integrated with nature and conform to the laws of nature, so as to "make the best use of everything".
It's winter now. In Neijing, winter health care preaches: "In winter and March, this means that you are closed, water and ice are frozen, and there is no interference with the sun. Lying early and getting up late, you must wait for the sun, so that if you have private intentions, if you have them, you will be warm without leaking your skin and lose your breath. This winter, qi should be the way to raise. On the contrary, it hurts the kidney, and it is paralyzed in spring, and there are few living people. "
Refers to the fact that the yang in nature is closed in winter, the transpiration atmosphere disappears in spring and summer, and the weather becomes cold and dry. People should go to bed early and get up late, and wait until sunrise. Because sunrise symbolizes the strength of yang, people will not be hurt by cold when they move. Some elderly people like to get up early to exercise, and diligence is a good thing. But getting up early in winter and going out at three or four in the morning is not a good thing, and it is easy to induce various diseases. The general principle of winter health preservation is cold and warm, not hot, because heat will develop the mechanism and disturb the yang. Some places burn central heating in winter, and the indoor temperature reaches 30 degrees. Think about it, people will feel uncomfortable when they encounter such a high temperature in summer, let alone in winter. So people will sweat, vent, go out again, and get sick easily when they are cold. Children and the elderly are the most vulnerable. Why are you hiding? Because you can only get rich by hiding. The purpose of hiding this winter is to be more energetic next spring. Otherwise, the yang will dissipate a little this winter, and the vitality will not be strong next year. Not only the body should conform to nature, but also the spirit should conform to nature. As mentioned above, "if you hide your ambition, if you have selfish intentions, if you have acquired it" means that the spirit should be kept in a closed state.
In winter, when the water is abundant, the kidney is damaged and the water is deficient, and the spring water does not contain wood, which is easy to cause liver-qi deficiency and muscle weakness.