It can be seen from Ascending the Mountain that the sky, the wind, the sand, the bamboo, the whistling of apes and the flying of birds in the poem are all made in heaven, and Ran Yan is in pairs. Not only the upper and lower sentences are 2 inches, but also the sentences are self-correcting, such as "sky" versus "wind" and "height" versus "urgency"; "Sand" versus "Zhu" and "white" versus "green" are full of rhythm. Every word is accurate and appropriate, and there is no name in it, which has reached a wonderful and difficult state.
Let's talk about quatrains. All four sentences in this poem are antithetical sentences, which is very rare. A quatrain is four sentences. In the past, poets either had four incomplete sentences, or the first two were against scenery and the last two were against lyric. or vice versa, Dallas to the auditorium Therefore, reading Du Fu's poems gives people the feeling of "endless words".