illusion
Catching the moon in the water is a Chinese idiom, and its pinyin is Shu ǐ zh ō ngzhu ō Yu è, which means to compare emptiness and fantasy, which cannot be realized. It comes from Zen master Zhenjue of Yongjia, a biography of lanterns in Jingde.
explain
It is a metaphor for empty fantasy, which cannot be realized.
source
"It's not difficult to see the form in the mirror, but to catch the moon in the water." example: ~ things are the same, every step is the same. --Wang Jie, Yuan Dynasty
illusion
echo on the mountains and in the valleys - shān míng gǔ yìng
Correct the wrong and correct the common - kuāng miù zhèng sú