Metaphor refers to those behaviors that are divorced from reality, emphasize form and abandon basics.

This classic is sparrow's.

There was a fisherman in the state of Lu. He used food made of osmanthus as bait, a hook made of gold thread, inlaid with silver thread and jasper, and woven the feathers of jade birds into fishing lines.

His posture of holding the fishing rod and the position he was looking for were suitable, but he caught very few fish.