What is Yu Xin's poetic achievement?

(1) Yu Xin's early poems were mainly written on demand, and the themes were mostly limited to court life, with shallow content. Generally speaking, his poems present a gorgeous style, but some of his poems also have fresh sentences. At the same time, under the influence of Yongming's new-style poems, his poems have made certain contributions in writing skills such as describing objects, tempering words, using temperament and creating poetic context.

(2) In the later period, Yu Xin moved from court to reality, and his poems mainly expressed his yearning for his motherland, his feelings for national subjugation and his loneliness. Therefore, his later poems are rich in content and profound in emotion. Twenty-seven pieces of Zhun Yong Huai typically reflect his later thoughts and feelings. In terms of art: First of all, the later poems show a fresh, vigorous, desolate and tragic style. Secondly, the artistic skills of Yu Xin's poems are more exquisite and mature. His poetry has reached a high artistic level, and beauty and essence, content and form have been perfectly unified; Harmonious rhythm is an excellent embodiment of seiko, musical beauty and formal beauty; The allusions are appropriate, clever and flexible, and there is no trace.