Classical poetry is divided into three genres: song, line and tune. Poetry before Tang Dynasty is basically classical poetry, while poetry after Tang Dynasty is modern poetry. Modern poetry has very strict requirements for metrical poetry, such as the number of words, the number of sentences, the level of parallelism, antithesis and rhyme.
One of the characteristics of classical poetry is that the meter is relatively free, which does not require antithesis and leveling, and the rhyme is relatively free, and the length is not limited. The song of the wind has this feature.
In addition, every sentence in the poem has the word "Xi", which is influenced by Chu style, so "Dafeng Pavilion" is also regarded as the first piece of Chu ci in Han Dynasty.