What do you mean by the prosperity of Tang poetry and the charm of late Tang poetry?

Meteorology in the prosperous Tang Dynasty is a proper term in literary criticism in the Song, Yuan, Ming and Qing Dynasties, which refers to the overall characteristics of poetry in the prosperous Tang Dynasty. In Song Dynasty, Yan Yu's Cang Hua and other works highly praised the prosperous Tang Dynasty, pointing out that the characteristics of the prosperous Tang Dynasty were "vigorous brushwork and vigorous weather" (a stepuncle in Lin 'an Book), and expounded this in his poems. Later, poetry theorists in Ming and Qing dynasties inherited Yan Yu's theory and often put bears.

Charm of Late Tang Dynasty: Du Mu and Li Shangyin were poets in the two peaks of Late Tang Dynasty. Later generations compared them with Li Bai and Du Fu in the prosperous Tang Dynasty and called them "Little Du Li", but in fact, their lives, poetic styles and influences were different. This book focuses on "people" and focuses on their life experiences and beliefs. Then focus on "poetry" and appreciate the poems of Du and Li. Finally, the relationship between Thaksin and the surrounding poets and later poets is widely discussed in order to see the changes of poetic style in the late Tang Dynasty and the early Song Dynasty.