dredge the moon out from the bottom of the water
The Chinese idiom, Pinyin is Shu ǐ D ǐ m ō Yu è, which means to do something that can't be done at all, only in vain. It comes from the seven kinds of manuscripts, strange banter and proverb wisdom written by Lang Ying of Ming Dynasty.
Idiom usage
In vain; in vain
Analysis of Idioms
Synonyms: looking for the moon in the water, looking for the moon in the haystack
The origin of Idioms
Lang Ying of the Ming Dynasty wrote in his book "seven kinds of revisions · strange banter · proverb wisdom": "when you drink wine on credit, it's romantic; when you drink, it's meteor catching the moon; when you ask for money, it's water touching the moon. He is also a rogue
Idiom explanation
It's a waste of effort to do something that can't be done at all. The same as "fishing for the moon in the water".
dredge the moon out from the bottom of the water
Abandon books and donate Swords - qì shū juān jiàn