The original sentence is "a broken bridge is not isolated and a long bridge is not long", which means that a broken bridge is not broken, a lonely mountain is not isolated and a long bridge is not long. The original sentence comes from Feng Ming Menglong's "Warning the World": "The bridge is broken constantly, and the liver and intestines are broken; Lonely mountain is not lonely, your heart is lonely; The long bridge is not long and the friendship is long. "

Interpretation: Broken Bridge refers to Xu Xian and White Snake; Gushan refers to Lin Hejing Mei's wife crane; The long bridge means that Liang Zhu said goodbye to each other on the long bridge.

Warning Story is a collection of vernacular short stories compiled by Feng Menglong in the late Ming Dynasty. The book will be completed in the fourth year tomorrow (1624). Its theme comes from folklore or folk religious books and novels. The times described in the story include Song, Yuan and Ming.

Many works in this collection are based on the real life of the lower classes and show their thoughts and feelings. Among them, works describing love account for a large proportion, praising young men and women's pursuit of happy love, their single-mindedness and loyalty to sincere love, and their resistance to feudal ethics. In addition, there are some works that show the dissatisfaction and resistance of the lower class to the feudal rulers.