The author sticks to the virtual image of "bird" ("even feathers rot in the land"), symbolically showing his strong feelings of being born in the land, singing in the land, being buried in the land, and living and dying with the land. At this point, the feelings of poetry reached a climax.
Extended data:
By describing that he lives in this land of the motherland, the author has more pain than joy, and there are too many "sorrows" and "angry winds blowing endlessly" in his heart.
However, this is the motherland where he was born and raised. Even if he dies for her, he won't leave this land-even feathers will rot on the land after death. It expresses the author's greatest and deepest unforgettable and indelible patriotic feelings.
Baidu Encyclopedia-I love this land (Ai Qing's modern poems)