Why did the dragon pattern and phoenix pattern become royal?

Ancient myths are often the soil derived from ancient art, and the earliest phoenix patterns in China are all closely related to ancient myths in China. There are two main views on the origin of this dependence: one is the totem theory of mysterious birds. The poem says: "A bird is a bird, and a bird is a businessman." The so-called bird is the phoenix. That is to say, the phoenix fell from the sky and the Shang Dynasty appeared. Second, the colorful bird Xiangrui said. Is this statement based on Shan Hai Jing? "Three Classics of Southern Times": "On the Danxue Mountain, there are many treasures, and Danshui flows out and flows into the Bohai Sea in the south. There is a kind of bird, which is shaped like a chicken, colorful and colorful. It is called Phoenix, a bird that eats naturally, sings and jumps, and sees the world at peace. " "Wu Leizhi" also said that "its birds write five colors, its beak is red, and its head is crowned, which means that the world is peaceful and Wang Youdao sees it.