Why did Yan Yu strongly advocate learning from poets in the prosperous Tang Dynasty?

Because Yan Yu's Canglang poems are more about understanding, the encounter between readers and authors, and the emphasis on style, artistic conception and verve, while Tang poems are the creation of artistic conception and the perception of life. Most of the poems of poets in the prosperous Tang Dynasty have the flavor of the prosperous Tang Dynasty, which has high artistic value and constantly pursues style and artistic conception!