In the Han Dynasty, there was a Taoist saying that the dragon king brought rain all over the world. Because the dragon is a local religion, the Taoist dragon is more China-like, more secular than the Buddhist dragon, and more suitable for the psychology of the people in China. The dragon can not only rain and eliminate drought, but also put out fires. At the same time, it can also convey some other requirements, such as seeking happiness, longevity, official position, illness, and bad luck in residence. Moreover, the Taoist dragon's rain is more human and legendary. The four seas refer to the east, south, west and north seas, but the name of the Four Seas Dragon King has different opinions. The earliest saying is that the dragon king in the East China Sea is named Aoguang, the dragon king in the South China Sea is named Aoming, the dragon king in the West China Sea is named Aoshun, and the dragon king in the North China Sea is named Aoji, which is consistent with it in the List of Gods. The Dragon King of the Four Seas has four colors, such as: Aoguang in the East China Sea is turquoise, and Aoji in the North China Sea is golden. The Dragon Queen of Beihai is a silvery white dragon. Together with the Dragon King Aoji of Beihai, they gave birth to twins in Chenning Hall. They are a pair of silver dragons in Phnom Penh, one named Xuechen (Xuechen) and the other named Xuening (Xue Ning). Later Xuechen Dragon was King Jiaze and Xuening Dragon was King Fuze. The two dragons specialize in cold air, such as wind, frost, snow, rain and ice. There is another saying in the generation of Shandong mountainous area that Xuechen and Xuening Erlong changed into two princes (Xuechen and Xue Ning) of Xueguo (a small country in ancient Shandong) who can enlist good warfare and benefit the people.
Buddhism: The Four Seas Dragon King is the four immortals who manage the ocean under the orders of the Jade Emperor. Ao Guang, the four Middle Eastern sea dragon kings, is the greatest, followed by Aoqin, Aoshun and ao run. The Journey to the West matches it. The definition of Buddhism is much later than Taoism.
According to legend, when Sakyamuni was born, there were two Dragon King brothers named Garo and Yu Garo. One sprinkled warm water on the left and the other cold spring on the right to bathe the Buddha. In the Karma Sutra of Past and Present, the dragon king who bathed in Buddha became difficult tuo and excellent difficult tuo. They "spit clean water in the void, warm and cool, and poured it into the prince's body". Tianzhong, Longzhong, Haga, Gandapo, Asura, Garuda, Kinnara, Mohoroga and other "Tianlong Babu" also played in the air, singing praises, burning incense and scattering flowers, throwing clothes and wreaths, which were "colorful and countless". In the Lotus Sutra translated by Kumarajiva, there are eight dragon kings. They are: the Dragon King of Namtuo, the Dragon King of Postscript Namtuo, the Dragon King of Pogalo, the Dragon King of Xiuji, the Dragon King of Wudeyijia, the Dragon King of Anabodado, the Dragon King of Monas and the Dragon King of Youboluo. John Zhang, a painter in the Song Dynasty, wrote The Source Map of the Dharma World, and painted six of them (the Dragon King of Monas and the Dragon King of Youbo Luo). These six dragon kings are all in the shape of kings on earth, wearing robes and boots, bringing attendants and their families, lined with clouds and sea water. In the Hua Yan Jing translated in the Tang Dynasty, the number of dragon kings increased to ten, and the names were different from the above eight. They are: the Dragon King of Pilou Bocha, the Dragon King of Dilong, the Dragon King of Sanyun Yinmiao Building, the Dragon King of Haiguang at the mouth of Four Flames, the Dragon King of Five Pugao Yunqi, the Dragon King of Six Deyijia, the Dragon King of Seven Boundless Steps, the Dragon King of Eight Pure Colors, the Dragon King of Nine Puyun Loud Games, and the Dragon King of Ten No Fever. In addition, there are five dragon kings, seven dragon kings and eighty-one dragon kings. The theory of one hundred and eighty-five dragon kings.