A bird's nest in dry wood
Mu Gan Niao Qi, a Chinese idiom, Pinyin is m ù g à NNI ǎ OQ ī, which means that birds perch on trees and never leave until the trees are dry. It's a metaphor for perseverance. It comes from the spring and Autumn Annals of Yanzi.
The origin of Idioms
In Yanzi Chunqiu waipian written by Yan Ying in the spring and Autumn period of Qi Dynasty, it is said that "the body dares not eat and drink, holds the yuan and holds the Yao, lives on dry wood and birds, and hides the flesh and bones."
Idiom usage
As an object or attribute, it refers to a firm will
A bird's nest in dry wood
Distinguish the sun from the fire - liè huǒ biàn rì
Rub one's hands and sharpen one's fists - cā zhǎng mó quán
The apes cry and the cranes complain - yuán tí hè yuàn