To cultivate one's mind is to keep one's mind calm, cultivate one's sentiment, balance one's mind, be reasonable, let nature take its course, take the initiative to adapt to the environment, control one's emotions, and not have unrealistic delusions. In this way, the human body is in a calm state, the physiological function is peaceful and orderly, and health care, psychological balance and good mental state are achieved, which is beneficial to physical and mental health.