The sparrow in the hall is a metaphor for living a stable life and losing vigilance. This is also a metaphor of disaster, but you don't know it.
The fish in the tripod is like a fish swimming in the tripod and a swallow's nest on the curtain. Metaphor is a person or thing in extreme danger.
Donglao Saixixi Lao: Shrike. Metaphor lovers, friends leave.
Singing warblers and dancing swallows turn like orioles and dance like swallows. It also describes the pleasant scenery and the good situation.
A tiger's head and cheeks are used to describe the nobility of a prince or the power of a military commander.