an ant trying to shake a giant tree
It is a Chinese idiom, Pinyin P í f ú h à NSH à, which means that ants want to shake a big tree. It is a metaphor for overestimating one's strength. From Diao Zhang Ji.
The origin of Idioms
Han Yu's poem "Diao Zhang Ji" in Tang Dynasty: "it's ridiculous to shake a big tree."
Idiom usage
He Yi: subject predicate; as subject, predicate, object; with derogatory meaning; examples. ——Mao Zedong's Manjianghong and Comrade Guo Moruo
Chinese PinYin : pí fú hàn shù
an ant trying to shake a giant tree
reduce an official to the ranks of the people. xuē zhí wéi mín