Based on modernity, young celebrities have become eternal blue-and-white porcelain. It is said that this sentence came from Song Huizong, because the Ru kiln at that time was dedicated to the Song royal family, and when the kiln official asked to name its color after firing Ru kiln porcelain, the royal family approved: "Rain breaks the blue clouds, so color will be the future." From then on, azure is the color name of Ru kiln porcelain. There is another saying in this sentence, which was said by Chai Shizong of the Zhou Dynasty after the Five Dynasties.