What is self-cultivation in TCM health preserving theory?

For self-cultivation, Chinese medicine theory holds that people who pursue health and longevity should first start with self-cultivation. For example, they should eliminate all kinds of delusions on weekdays, say more good things, do more good deeds, let themselves be open-minded and emotionally stable, so as to maintain their physical and mental health. The most important thing in self-cultivation is to cultivate one's mind. "Being indifferent to my heart all my life" is a high spiritual realm. Everyone has emotions,

Fear and shock are the seven emotions of people, and if they go too far, they are too emotional. Huangdi Neijing emphasizes "indifferent to nothingness" and says "indifferent to nothingness, conforming to the true qi, hiding the spirit inside, and preventing diseases". In short, it is to be "light".