What does the water-playing guzheng in western Western jackdaw mean?

Crows swim in the cold winter, reflecting a trace of happiness and comfort in the desolation. It is said that in the late Ming and early Qing dynasties, in order to consolidate its rule, the Qing government retained a number of old ministers of the Ming Dynasty, but took monitoring measures and brutally suppressed them. The old minister of the Ming Dynasty was afraid to speak when he met, or to stay when he walked, for fear of being killed accidentally, and he was very lonely in his heart. Only when they go home can they enjoy it behind closed doors. You can understand this artistic conception if you think about it.