Cultivating immortals originated from the ancient concept of health preservation. Cultivation of popular qigong in Wei and Jin Dynasties. This is a way for people to control their own lives on the basis of self-awareness, and it is also one of the ways to cultivate immortality. It is the deepest processing and perceptual consciousness of human subconscious, a fundamental change of human destiny, which will last forever, and harmony with Tao is the ultimate pursuit and yearning. Or soothe the nerves and cultivate one's nature, or cultivate the truth and realize the Tao, so as to achieve the supreme and perfect immortal realm of immortality.