Singing idioms and allusions in fox fish books

The origin of the idiom: Family Records: It is called "Chen" in "Dan Shu Si Shu" and put in the stomach of a fish. Strangely, a pawn bought fish to cook and got a book in the fish's stomach. In the temple next to Wu, there is a bonfire at night, and what does the fox say is "Great Chu Xing, Chen".

Idiom story

At the end of Qin Dynasty, Chen Sheng and Guangwu were arrested for being soldiers, but their trip was delayed by heavy rain, so they had to revolt. Before starting the army, Chen Sheng asked the fortune teller to calculate a divination, write "Chen" on white silk and stuff it into the fish's stomach. In the middle of the night, he built a bonfire with bamboo in the ancient temple, imitating the fox's "Chen" to create momentum for the uprising, and the next day he rebelled and established the Zhang Chu regime.

Examples of idioms

Writing like a fox singing a fish is a good omen to fool the public. "He Lin Yu Lu" by Luo Song Dajing