Why do the mountains and seas on the edge of Xuefeng change lines?

Because the author wants to write the layering of the majestic scenery. Let this sentence be more brilliant against the first few lines. The author on the edge of the snow peak in Erdu is a modern poet Chang Yao. In this poem, the poet created many aesthetic images, such as increasing snow and spiders on the rock wall. Together, they create a dignified and magnificent atmosphere, which will form a harmonious whole with an ancient and open plateau background and a broad sense of life. Through the change and interaction between images, the utopia that the poet yearns for is depicted, which is a paradise that only exists in the poet's heart.