1, the source: "Han Feizi, the foreign reserve said the lower left": "The formation of the three armies makes the scholars feel dead, and the minister is not as good as the son."
2. Usage of idioms: as predicate, attribute and adverbial; Refers to not afraid of death.
3. Idiom story: 1904, despite her husband's obstruction, Qiu Jin sold her jewelry, visited Huang Xing, Chen Tianhua and Song in Japan, and joined the Sun Yat-sen League. 1906, she led a death squad composed of students studying in Japan to return to China as a supervisor of Datong College. Later, he was arrested for the failure of the Xu Xilin uprising. Before his execution, he said, "Revolutionaries are not afraid of death, so they can kill if they want to.". Emperor Taizong released 300 death row prisoners to visit relatives at home and returned to China to die within the agreed time limit. As a result, 300 people returned to die as scheduled. Emperor Taizong was so moved that everyone was pardoned for capital punishment.
The above is about where death comes from.