The whole poem uses clear, concise, beautiful and fresh language, and uses various rhetorical devices such as metaphor, symbol, comparison and questioning to highly summarize and incisively express the poet's true feelings. No wonder the predecessors praised Li Yu's words as "songs of blood and tears" and "one word and one bead". Li Houzhu's poem hung on the predecessors: "Being a talented person is really peerless, and being the king of evil." Indeed, as a monarch of national subjugation, he has nothing to say, but as a generation of poets, he left many words of blood and tears that made people cry, which will last forever. The song "Young Beauty" is one of the most famous songs. The structure of ci poetry is rigorous, always hovering and fluctuating, and it is combined into a harmonious and coordinated artistic whole around a central idea. Before Li Yu, no poet could achieve such high achievements in structural art, so Wang Guowei said, "There are no words in the Tang and Five Dynasties. Famous poets in the Southern Song Dynasty wrote articles without sentences. There is a saying, but after Li Houzhu came down, his works involved Uncle Shui, Zi Zhan, Shao You, Mei Cheng and Jia Xuan. " It can be seen that Li Yu's artistic achievements are of great significance beyond the times. Of course, what is more important is that he feels deeply, so it is the emotion itself that plays a decisive role. It was also Wang Guowei who put it well: "The words of my ancestors are actually so-called bloody books." This song "Young Beauty" is full of sadness and hatred, with deep and strong feelings, like a raging river, desperate to rush out. It is rare in history that a king who is above the sword dares to express his hatred of national subjugation so boldly. Li Yu's devotion to such pure and sincere feelings is probably what Wang Guowei called "naive words" out of "a childlike innocence". This feature is most prominent in the poem Yu Meiren, for which Li Yu paid the price of his life. French writer Miao Sai said: "The most beautiful poems are the most desperate poems, and some immortal chapters are pure tears." Yu Meiren by Li Yu is such an immortal work!