Introduction to Mangxian Cave: Mangxian Cave has a touching imperial legend: Wei Zheng, the prime minister of the Tang Dynasty, observed the sky at night and originated from Lingshan Mountain, the Dragon Vein of the East. Li Shimin personally supervised the construction of Lingshan Temple to protect the country. After the dragon was suppressed, one of his sons and a woman escaped by transforming into pythons and stayed in the Lingshan cave, where they devoted themselves to cultivating the law and protecting the people. The two pythons have the Chinese character "中" printed on one head and the Chinese character "华" printed on the crown on the other, so they are called the "Chinese Two Pythons".