What kind of picture does Wen Dong's poems about Sima in Jiangzhou depict?

Wenle was gifted to Jiangzhou Sima, written by Yuan Zhen, a poet in the Tang Dynasty. This poem was written after the author learned that Bai Juyi was easily degraded. This poem sets off feelings with scenery, writes feelings with scenery and expresses feelings with emotion, which shows the author's deep affection for Bai Juyi. The first sentence describes the dark background of his life, which sets off the author's desolation and pain of being demoted and ill. The second period indicates the meaning of the question; The third sentence describes the scene when Bai Juyi was demoted, which shows a lot of meanings; In the last sentence, the bleak scenery and bleak mood are combined into one, and the mood is sad. The whole poem expresses the author's extreme shock and sadness after learning that his friend was demoted.