What is Du Mu's most famous poem?

Du Mu's literary creation has many achievements, including poetry, prose and ancient prose. The Complete Tang Poetry contains eight volumes of Du Mu's poems. Poetry in the late Tang Dynasty was so soft that Mu Zhi corrected it with steepness. The seven unique skills are especially graceful and far-reaching, and the scholars in the late Tang Dynasty allowed themselves to bend. Therefore, seven-character quatrains are his most successful poetic style. He advocates that all works should be based on meaning, supplemented by qi and defended by words, and has a correct understanding of the relationship between content and form of works. And it can absorb and melt the strengths of predecessors and form its own special style. In poetry creation, Du Mu is as famous as Li Shangyin, another outstanding poet in the late Tang Dynasty, and is called "Little Du Li". Influenced by Du Fu and Han Yu, his classical poems have a wide range of themes and bold brushwork. His modern poems are famous for their beautiful words and ups and downs. The seven-law "Early Wild Goose" expresses the nostalgia for the people in the northern frontier displaced by the Uighur invasion, and it has a graceful and lingering taste. "Ascending the Mountain in Nine Days" writes his broad-minded mind in a bold style, but it also contains deep sadness. The general trend of poetry in the late Tang Dynasty is gorgeous and dense, and Du Mu is influenced by the atmosphere of the times and also pays attention to the use of words. This tendency of fierce rhetoric, combined with his personal characteristics of "heroic and heroic", is elegant and graceful, magnificent and exquisite.