What role did the poems of Wei, Jin, Southern and Northern Dynasties play?

The Wei, Jin, Southern and Northern Dynasties, which lasted about 400 years, was a period of long-term division and turmoil in China. Not only the political and historical situation is complicated, but also the development of literature is constantly changing. Poetry has made great progress and become an important development period. During the Wei and Jin Dynasties, which lasted for 200 years. If we say that the literati's creation in Han Dynasty was mainly Ci Fu, and entered the Three Kingdoms period with Wei as the center, the focus of literati's creation turned to poetry, and then there were several creative climaxes.