Chinese medicine says that "the heart is full of lust, the god is full of food, and the god is full of sleep." Among them, "not enough to eat" is what we generally call "broken valley" now.

Strictly speaking, Bigu is practiced through strict kung fu, and the whole body is full of energy, with smooth qi and blood, smooth meridians, carefree and energetic, and does not think about diet. Just like what Buddhists say, "don't eat in the afternoon" and "eat after meditation" are the same in the precepts of Baguange. It is the natural physiological response of the human body after entering a special state under meditation training, and the body and mind are synchronized with nature.

Man is the product of the organic combination of body, energy body, psychology and mental state, and Chinese medicine pays special attention to the influence of emotion on physiological activities. It is believed that "the heart is the official", which is not only the heart, but also the human heart, brain and various emotional States. Emotional changes will affect the five internal organs.

Through practice, physical, psychological and spiritual changes have taken place. These changes may not be detected by modern instruments, but the subjective experience can obviously feel the wonderful changes.