Recently read "University", which is quite comfortable with the theory of self-cultivation, I would like to copy it and share it with you:
The so-called self-cultivation in the right mind, if there is some anger in the body, it must not be corrected; if there is fear, it must not be corrected; if there is happiness, it must not be corrected; if there is some sorrow, it must not be corrected. Absent-minded, blind, deaf, deaf, eating without knowing its taste. This is called self-cultivation in the right mind.
If people are affected by emotions such as anger, fear, happiness, and distress, they cannot make their minds "correct", and they cannot cultivate their own conduct, and only by adjusting their mentality and making the mind "correct" can they achieve the purpose of self-cultivation.

Photo taken in Dayu Park, Yucheng City, Shandong Province