How did the image of white come into being in China's ancient books?

Bai's artistic transformation and processing of the image is the product of The Journey to the West's positive factors in inheriting and developing China's ancient romantic cultural tradition. In China's ancient literary works, dragon and horse have an indissoluble bond. For example, the Tianma in the Nineteen Sacrifice Songs in the suburbs of Han Dynasty is called "Today's dragons are friends" and "the medium of dragons". An Gongzi, the hero in The Legend of Heroes of Children, was named Ji with the word "Dragon Media". Especially in romantic works, there are many figures who take dragons as mounts, most of whom are Tessa who are dissatisfied with the dirty world and are bent on pursuing beautiful ideals and surpassing reality. For example, in "Zhuangzi's Happy Journey", the fairy who "rides a dragon in a cloud but travels around the world" because of "chaos in the world"; In Qu Yuan's works, there are even images of people, such as "Traveling in a green boat, I will visit the garden with China" (Shejiang), "Exploring the north by flying dragons" (Xiang Jun), "Taking a seat in a jade boat with Ai" in Li Bai's works, and the image of celebrating the "Six Dragons" for the sun god. Although these Tessa have been hurt by the real society, they all persist in pursuing beautiful ideals without regrets, and the sacred dragon of the Chinese nation has also become their right-hand man who transcends reality and reaches the ideal realm. At this point, Wu Cheng'en and his predecessors have many similarities.