Crows leave their nests to ruminate, which shows that some people are still worried about and miss the past days after leaving their own environment. After leaving a certain place and a certain state of life, I will think and recall the past time again and again in the new environment. The action of ruminating is to chew food repeatedly, so as to digest and absorb nutrients repeatedly. This sentence shows people's yearning for the good old days, similar to the rumination behavior of animals.
Whether it is a lamb kneeling on one knee to pay for maternal love or a crow ruminating from its nest, it is a metaphor for the similarity between man and the animal kingdom, and the inherent behavior and life habits of animals are integrated into people's spoken language. These words or expressions make us better understand ourselves and the world around us, and also reflect our sensitivity to life, poetry and profundity.