1, water is clear if it is not mixed. Closed but not flowing, it can't be clear. This way of nourishing the heart is also to take a walk for nourishing the heart.

2. When an accident happened, it was a sick place. Old people should be prepared for everything and wake up when they are happy.

3. People's mind is narrow if they want more, and wide if they want less. People's mentality, more desire is busy, less desire is idle. People's minds and desires are too risky and too few are dull. People's worries, if they want more, they will worry, and if they want less, they will be happy. A man's heart is full of desire, but he lacks it.