Parallel prose and rhyme are two direct sources of couplets. In the process of its own development, couplets have absorbed the characteristics of ancient poems, essays, lyrics and songs. Therefore, the sentence patterns used in couplets include ancient poems, prose sentences and parody sentences in addition to regular poems and parallel prose sentences.
Different sentence patterns have different metrical patterns and different leniency. Among them, the sentence pattern of rhythmic poetry is the most strict, while the sentence pattern of ancient verse has no restrictions except at the end of the sentence. ?
Extended data:
Couplets are mostly written in words, often written, hung or engraved on other buildings or objects. So the second level of antithesis of couplets is the so-called literal opposition. The relativity of words means that couplets are not only language art, but also decorative art.
As a decorative art, couplets are required to be neat and symmetrical, giving people a harmonious and symmetrical aesthetic feeling. Chinese characters just have the conditions to achieve neat symmetry. They exist in the form of individual squares, square and uniform, occupying an equal spatial position in writing.
It is readable and visible. Its square configuration has both aesthetic principles and mechanical requirements. Whether writing horizontally or vertically, it can be dense, neat and beautiful.