Du Mu was very concerned about politics in his early days, and he was worried about the riddled Tang Dynasty. He saw that the ruling clique was decadent and fatuous, that the buffer region was in a state of chaos, and that there were frequent border troubles. He deeply felt that social crises were everywhere and the prospects of the Tang Dynasty were worrying. This thought of worrying about the times and hurting the world prompted him to write many poems with practical significance. Bo Qinhuai was also produced on the basis of this idea. When he came to Qinhuai River, which was still a prosperous river at that time, he was deeply moved and wrote this poem when he heard the singer singing "backyard flowers". The poem says that Jinling singers "don't know how to hate the country" and sing the song "backyard flowers".

In fact, this is the history that the author (Chen) finally perished because of his pursuit of debauchery and pleasure, which satirizes that the rulers in the late Tang Dynasty did not learn lessons and shows the author's incomparable concern and deep concern for the fate of the country.

This poem is also skillful in the use of language. For example, the first seven words outline a vivid night view of Qinhuai River, indicating that the language is concise, accurate and vivid. The last two sentences, the last sentence is clear, simple and natural; The next sentence expresses his deep affection with simple allusions, which is quite elegant and fresh. All these make this poem look beautiful, vivid, melodious and full of artistic appeal.

It can be seen that the "ancient" here refers to the post-Chen, and the "present" refers to the late Tang Dynasty. See the second paragraph for details.