Balance yin and yang and regulate qi and blood.

The balance of yin and yang in traditional Chinese medicine refers to the coordination of yin and yang, which is neither excessive nor biased, showing a coordinated state. The balance of yin and yang in life refers to the balance of viscera, cold and heat, and qi and blood. Its general principle is the coordination of yin and yang, and its essence is the balance of yin and yang essence (essence, blood, body fluid and body fluid), that is, the coordination of various functions and substances of the human body. If Yin and Yang Can are in balance, then people's qi and blood are abundant, their five internal organs are healthy, and their skin color will be good.