A cloud floating from the horizon and a lonely night hanging on the bright moon, he thought of his guests, as if he were as lonely as the clouds and the moon. In this way, my feelings are integrated with the scenery outside. On the surface, the poet writes about the lonely moon, but in fact he writes about himself: although far away, he is as loyal as the lonely moon.

The first couplet is clearly written about a lonely moon in a long night. The sunset in this couplet is by no means a real scene, but a metaphor. Huang Sheng pointed out: "The setting sun is a metaphor for the teeth of twilight", which is for chanting, not writing scenery. Otherwise, it is contradictory to watch the lonely moon and the sunset in a rhyme. What he said is very reasonable. Sunset is equivalent to "Sunset in Western Hills". The original meaning of the sentence "sunset" is "the old man is not old." It is the same as Cao Cao's "Martyrs are in high spirits in their later years" ("Walking out of Xiamen"). The same is true of tortoise's poems. As far as the format of metrical poems is concerned, this combination is metonymy. "Sunset" is the antonym of "autumn wind", but "sunset" is actually a metaphor of "twilight". The phrase "autumn wind" is realistic. "Su" has a sense of recovery. The poet Jianghan, instead of being sad for the autumn wind, felt "sick for the Soviet Union". This is quite similar to Li Bai's ideological realm of "feeling prosperous and easy in autumn, who is worried about autumn", which shows the poet's mental state of going forward bravely in adversity.