Yuan Tiangang: The most famous Taoist priest in the Tang Dynasty, a master of China's physiognomy, was born in Chengdu, Yizhou, an astronomer, astrologer, forecaster, feng shui master, Taoist priest and physiognomist in the late Sui and early Tang Dynasties. Good style of study, tired and uncomfortable, the Sui Dynasty was ordered by salt officials, and the Tang Dynasty was ordered by fire wells. According to legend, he knows how to learn from the wind, that is, he can break good or bad luck by the wind and direction, and he is also proficient in facial expressions, six rings and five elements.
Yuan Shoucheng: A famous warlock in Tang Dynasty, uncle of Yuan Tiangang. The Journey to the West's ninth "Yuan Shoucheng Wonderful Selfless Song" describes Yuan Shoucheng, and the old dragon king's clumsy crime describes his grotesque appearance, beautiful appearance, knowing the past and knowing the future, and being good at breaking Yin and Yang.