Birds "flap their wings and throw the sunset on the river". What makes people think is that the bird carrying the sun back to its nest seems to have given birth to regret, and suddenly realized that the sun is the sun of the river, the sun of the reed, the sun of all things in the universe, not its own sun. Look at that "white reed" Isn't it because of the sunshine that you are young and blush?
Looking back, birds will be complacent about their timely repentance. Therefore, in a poem with few words, not only the magnificent image of "tired birds carrying sunset" touches the heartstrings, but also the ups and downs of the bird's heart and events increase the meaning and tension of the poetic scene.
Background of extended data creation
In the 1920s, poets who wrote new poems were greatly influenced by old poems, so all the new poems at that time had a strong style of old poems. In addition to writing in vernacular, the artistic conception and expression of poetry are often not much different from those of old poems. This is a major feature of poetry at that time.
The same is true of Liu Dabai. Although he tried to write a pure vernacular poem, this poem still followed the original requirements of classical poetry in terms of meter, so we can still see the traces of its influence from old poems. "Autumn Night on the River" was created in this environment.