What does floating clouds mean in ancient Chinese?

Floating clouds refer to floating clouds: ~ cover the sun. The word floating clouds has many meanings as an image in poetry, and now it is often used as a metaphor or extension alone.

example sentence

"Confucius said: save clothes and food, bend your arms and pillow it, and enjoy it. Being unjust and rich is like a cloud to me. " -The Analects of Confucius.

"The block is alone here, forever sighing." -"Nine Debates on Chu Ci"

"There are tall buildings in the northwest, and the clouds are calm." -"Nineteen Ancient Poems of Northwest Tall Buildings"

"Ah! Life is like a cloud. " -"Biography of Zhou Shuxiao's Great Joy"

"The cloud is my cloud, and the hate platform spins for me." -Yuan Guan Hanqing's Dou Eyuan

"If you stop water, you will be enlightened, and floating clouds can be mentioned." -Qing Tian Lanfang's Three Poems of Poetic Fairy Hall (Tang Nuo, Yuan Keli). )"

"Ill-gotten wealth is as expensive as floating clouds to me." -The Analects of Confucius (Shuer)

"If compared with the autumn wind, the original floating clouds are just idle. What about the ups and downs in the world? It will be fine when you see the haze. " -Qing Qi Huilin

"Her previous worries, like a cloud, were blown away by a gust of wind." —— The third part of A Morning in Shanghai in a cycle, Erjiu.

"Don't be afraid of clouds covering your eyes, just because you are at the highest level" —— Wang Anshi's Climbing the Flying Peak

"There is a saying in ancient times that you ask me about good and evil, such as floating clouds, which have no beginning and no end." -The fourth volume of Danxia Mountain Records

Several images of the word floating clouds in poetry