What is the meaning of floating clouds and wild cranes on a sleepless rainy night tonight?

It means: listening to the rain tonight, no mood to sleep, just like a person is not bound in the dark.

Idle clouds and wild cranes mean: floating clouds, wild cranes. Refers to people whose lives are idle, isolated and free from dust. Pinyin: Xiányúnyhè Source: Song Youmao's "All Poems of Tang Dynasty" Volume 6: "It is difficult to add a state, change a poem, and don't fly in the clouds." Vernacular Interpretation: It is difficult for California to become a poet. Why can't it fly when it is alone? Usage example: I really envy Lao Zhou's later life, without the shackles of life locks, just like wild cranes in the clouds.