This poem expresses Li Bai's parting feelings with his friends by describing the parting environment. In the green mountains and green waters, the author walks side by side with his friends, feeling affectionate. This time, when they leave, their friends will fly with the wind like grass, and Wan Li will fall. I don't know when I can see them again. "I will think of you in the clouds, so I think of me in the sunset" describes their wandering whereabouts and their reluctance to their friends, which is a metaphor for the scene. Clouds and sunset also have human feelings.