Yuan Tiangang was a Taoist priest from the Tang Dynasty. Legend had it that he was a strange person who could predict the future. However, according to historical records, he did not die and lived until the Song Dynasty. There was no record of Yuan Tiangang's death, but according to legend, he was recruited as prime minister by the emperor in his later years because of his erudition and reputation. However, he died suddenly not long after. The exact time was unknown. Legend has it that Yuan Tiangang had shown extraordinary wisdom and talent when he was young. It was said that he could accurately predict future weather changes and natural disasters by observing natural elements such as topography, weather, and topography. He was also good at calculating the fate of the country and accurately predicted the future decline of the Tang Dynasty. In some novels, Yuan Tiangang was described as a mysterious character, and his death was a mystery, but in reality, he did not really die. These legends and stories became a famous topic in Chinese culture, and were widely spread and studied.