The general idea of this passage is: controlling the rhythm of your behavior can adjust your body and mind; Through diet, clothing and dressing up, we can cultivate our aesthetic experience of the body; Being polite to others can cultivate our virtue of being a man; Only by putting yourself in others' shoes can others be nourished. Words are related to our virtue and must not be careless; Diet is related to our health and needs to be nursed back to health. In a word, manners, diet and daily life all contain profound health principles and have an important impact on life. How can we ignore them?