
* Changzu: That is, contentment is always sufficient, from the 46th chapter of the Tao Te Ching written by Lao Tzu, "Therefore the foot of contentment is always sufficient". Standing foot: often feel satisfied, always satisfied. It means that people can often feel satisfied without too many requirements.
* A meal: a small benefit or favor. Song Ye Shi's "Epitaph of Zhou Jun Nanzhong": "I often take the rise and fall of the world as my own burden, disregard my selfishness when I eat, feel like home when I am worried, and feel like my body when I am worried."
* Sorrow: Sorrow and heartache.
*Settling: Buddhist language. It is said that Buddhists sit quietly with their eyes closed, without distractions, and fix their minds in one place