Falling flowers are ruthless running water, and running water is unintentional falling flowers.

Falling flowers intentionally or unintentionally. The fallen petal has no intention to describe one party's intention and the other party's intention. It is often used to describe the phenomenon of "unrequited love" or "unrequited love" in love, and to describe the twists and turns of love between men and women. One side is affectionate, and the other side is unintentional. It can also be used to express one's wishful thinking and romantic thoughts, while the other party is ungrateful.

It was first seen in Songshi Baiwei's Continued Lantern Record Wenzhou Longxiang Shi Zhuan Jue Zen Master: "Falling flowers intentionally follow the flowing water, and the flowing water loves falling flowers mercilessly." Originally the language of Zen Buddhism. The original meaning is that the fallen flowers float away with the flowing water, describing the scene last spring. Now it is more like a metaphor that one side is intentional and the other side is ruthless.

This poem also appeared in Feng Menglong's Ming Dynasty Yu, Volume 13, Zhang Daoling, Seven Tests on Zhao Sheng, and later appeared in Feng Menglong's Ming Dynasty Shi Jing Volume 21, Zhao Taizu sent Jingniang thousands of miles away. This sentence was also used in Ling Mengchu's "Moment Surprise, Volume 15" in the early Ming Dynasty.