The poem consists of four sentences, the first two of which are about the night scene of Biepu, the third one is about comforting friends, and the last one is about the pain of lovelorn. The greatest feature of this poem is that it contains the artistic conception of the famous Qin in the Book of Songs. It uses the rhetorical device of quoting classics, starts from the scene, points out the topic with emotion, advances layer by layer, and twists and turns everywhere, which can be described as twists and turns.