According to official website, whoever inquires about the ancient poetry network, Chang 'an seems to return home in spring after snow, and even Shu Hui comes from the poem "Snow falls outside the ancestral temple, and early morning is a thing" written by Cen Can, a poet in the Tang Dynasty, which means that Chang 'an returns home in spring after snow, the snow condenses into brilliant brilliance, and the sunshine at dawn is even more dazzling. This poem depicts the scene of Chu Qing after the snow. The poet compares the snow scene in Chang 'an to spring, and the snow blooms like spring flowers under the sunlight, vividly showing the beauty and vitality of the snow scene.