Meditation was initiated by Laozi and Zhuangzi, who put forward the theory of "doing nothing". Huangdi Neijing, after Laozi and Zhuangzi, first put forward that nourishing the spirit is the key to prevent diseases from a medical point of view, and advocated that the spirit should be nursed back to health according to the characteristics of qi in the four seasons.
The school that advocates spiritual health preservation thinks that God is the master of life activities, while calmness can resist aging and prolong life. People's thoughts, worries, wisdom, ambition, urgency and soul are all dominated by God. Advocate quiet and internal defense, and should not be irritable and extravagant; Emphasize abstinence, restrain eyes and ears, adjust the mind, adapt to the four seasons, often practice static exercises, keep quiet and promote health.