Bai Juyi, a great poet in the Tang Dynasty, said that in some areas in the south of the Yangtze River, his poems such as Qin Zhongyin and Song of Eternal Sorrow were widely circulated. "From Chang 'an to Jiangxi, poets often write servant poems. "Yuan Zhen's" Bai's Changqing Collection "said that his poem with Bai Juyi was" It is forbidden to visit temples, post offices and books on the walls, and princes, concubines, cowherd and horses all talk. "

The spread and popularization of poetry, on the one hand, shows the prosperity of literature, on the other hand, shows the popularization of education. After Bai Juyi's poem was written, he read it to an old woman. She basically understood it, so he stopped revising it.