When Ning Fengzi was passed down as the Yellow Emperor, Zheng Tao (in charge of burning pottery). Can set himself on fire, go up and down with the smoke Its legend first appeared in Biography of Immortals, and was later recorded in Search of Ji Shen, Collected Notes, Travels of Guang Huangdi, Bamboo Weaving in Xianyuan, Local Records of Historical Immortals, Zi Zhi Tong Jian and so on. To sum up its contents, there are three points. One is Ning Fengzi's cultivation into immortality. "Fairy Biography" said: "Ning Fengzi was born when the Yellow Emperor was a human being, and was handed down to the world as Zheng Tao. Some people lead it, make a fire for it, and smoke in five colors. For a long time, they were closed by teaching. The envelope will burn itself and rise and fall with the smoke. Seeing its ashes, it still has its bones. At that time, people were buried in the north of Ningbei Mountain, so they were called Ning Feng Yanzi. " (1) Wang Jia's Notes in the Eastern Jin Dynasty added: "The flow is like dust, and the practice is heavy, which is unfathomable. The wind blows sand like fog, and many fish and turtles in Shennong can fly. There is a kind of bluestone, strong and light, from the wind to the waves, a stem louver, a Millennium flower. There is a sand ring on the land, and it is said that sand surges into waves. Shenxianning ate flying fish and died, and recovered in 200 years. Therefore, when Mr. Ning swam in the sand sea, he sang a seven-word cloud:' The green grass shines for a thousand years, and the flying fish dies for a hundred years.' So is this flower and this fish. "②

Secondly, the Yellow Emperor asked Ning Fengzi about "the art of dragonfly". According to legend, Ning Fengzi lived in Qingcheng Mountain in the middle of Shu after he ascended to heaven. The Yellow Emperor went to see him and asked him how to fly with the dragon. Fan Chengda, a poet in the Southern Song Dynasty, said, "When you reach Qingcheng in thirty miles, the mountain gate is called Baoxian Jiujian Cave. The scenery of staying overnight is under Zhang Renfeng. The five peaks are majestic as a screen, and the viewing platform hall reaches the rock belly. Since the Tang Dynasty, husbands have been called Wu Yuefu. " There is a saying in the Biography of the Prince of Chu that the surname is Ning and the name is Feng, which is the same as that of the Yellow Emperor. The emperor asked dragons how to fly. 3 yuan Zhao said, "Mr. Ning Feng lives in the northern rock of Qingcheng Mountain in Shu, and the Yellow Emperor is the teacher."

When asked about the trinity, Mr. Wang said, "I heard that the innocent emperor is too embarrassed, and he has reached the source of the trinity near Emei. You can ask the teacher." Because he was awarded the Dragon Riding Sutra by the Yellow Emperor. When the Yellow Emperor receives it, he can ride a cloud dragon and swim the eight poles. He built an altar and worshipped Ning Jun as a real person of the Five Mountains. ..... The Yellow Emperor sealed the Five Mountains, Ning Guojun, the eldest moon god, and reported the leakage here with water, which means water at six o'clock. It floats and sprinkles on cloudy days, but not on sunny days. " ④