" Looking at Tianmen Mountain " was a poem written by Li Bai, a poet of the Tang Dynasty. It mainly described the beautiful scenery and inner emotions that the poet felt after climbing Tianmen Mountain. The poem's poetic quality was that it expressed the poet's reverence and praise for nature through the description of the towering Tianmen Mountain and the magnificent scenery. At the same time, it also expressed his inner loneliness and sigh. The Tianmen Mountain in the poem was a mountain peak that towered into the clouds and was known as the " World Scenic Spot." After the poet ascended the Tianmen Mountain, he was filled with emotion at the magnificent natural landscape. He wrote,"The Tianmen Mountain was interrupted by the opening of the Chu River, and the clear water flowed eastward. Green mountains on both sides of the river face each other, and a lone sail appears beside the sun. There's no way out of the mountains and rivers." This poem showed the beauty and mystery of nature by describing the towering Tianmen Mountain, the magnificent scenery, and the steep roads and circuits in the natural landscape. At the same time, it also expressed the poet's reverence and praise for nature. The poems such as " The mountains and heavy waters are in doubt, and there is no way out. The willows are dark, and the flowers are bright, and there is another village " also gave people profound enlightenment and insight.