This piece of music expresses the author's lament about the changes of the world and the disappearance of the prosperous time of the Southern Song Dynasty. This feeling is mainly expressed through the scenery, mixed with the scene. Turbulent clouds, old trees and sunset are all imbued with deep feelings for the motherland, turning the "sad national conditions" in the author's chest into the "scene of decline" in front of him, making people appreciate the poet's sadness.