Why does China's literary development take poetry as its prosperity, while the West takes poetry as its prosperity?

The Tang Dynasty is a dynasty of reform and opening up, and its culture can be described as a hundred flowers blossom, a hundred schools of thought contend and unprecedented prosperity. Buddhism, Taoism and Confucianism all developed well at that time, so the culture at that time should be the peak of ancient times, and everyone appeared frequently, especially "poetry". The development of "Ci" in the later period is also relatively fast. At the same time, literature such as "Legend" has also developed. In the Song Dynasty, because of the implementation of Neo-Confucianism, people's thoughts were imprisoned and relatively inactive. Therefore, the word "Ci", which pays attention to strict meter, has developed, with a large number of people, but it can't be compared with the prosperity of poetry in the Tang Dynasty. Because the emperor at that time liked writing, influenced by social atmosphere, the theme of ci was relatively narrow. At that time, "Pinghua" developed rapidly.