What is the meaning of cicada in ancient China?

Mantis was about to catch cicada, but I didn't know that the yellowbird behind me was about to eat cicada. Metaphor is short-sighted, only thinking about calculating others, but I didn't expect others to calculate him.

Source: Zhuangzi Sanmu: "When you see a cicada, you get a beautiful picture and forget its body. When you see it, you will forget its shape; Different magpies benefit from it, and forget the righteousness. " Han Han Ying's Biography of Han Poems: "Mantis wants to eat cicadas, but I don't know that the yellowbird is behind, so he pecks at it by holding his neck."