Is it a eight-character idiom that the cup bows and the snake shadows and the wind rustles?

The wind is full of noise: the sound of cranes. The sound of the wind and the cry of cranes. Describe panic; Or disturb yourself. Back to the dock

The wind is shaking, the grass is shaking: the birds are singing. Hearing the wind and the cry of cranes, everyone suspected that it was a pursuer. When people panic, they are suspicious.

take alarm at the shadow of a bow in the cup—be frightened of shadows

[Interpretation] ① Mistake the bow shadow reflected in the cup as a snake. Metaphor is suspicious; Disturb yourself. (2) can also be used to describe illusory, actually does not exist. Also known as "Bow Shadow Cup Snake".