Chen Tuan (871-989), courtesy name Tu Nan, self-styled Fuyaozi, and bestowed by Emperor Taizong of Song with the title Xiyi Xiansheng, was known as Chen Tuan Laozu. He inherited the physiognomy since the Han Dynasty, and integrated Huang-Lao thought, Taoist alchemy, Confucian cultivation, and Buddhist meditation into one. He had a great influence on Song Dynasty Neo-Confucianism. He was the supreme Taoist after Laozi and Zhuangzi, and was also a philosopher, Yi scholar, natural scientist, health expert, physiognomist, and poet. Chen Tuan was born in Chenzhuang, 12 li south of Bozhou, Anhui Province, during the late Tang Dynasty and the Five Dynasties, and spent the first half of his life in his hometown of Bozhou. At that time, the thoughts and doctrines of Laozi and Zhuangzi were prevalent in the Woshui River Basin in Bozhou. Chen Tuan was deeply influenced and edified. He wrote 81 chapters of "Zhi Xuan Pian", more than ten books such as "Sanfeng Yuyan" and "Renlun Fengjian", created 21 Yi diagrams, and wrote more than 600 poems. His academic thoughts have had a profound impact on the vast areas of seven provinces, including Anhui, Henan, Shaanxi, Hubei, Sichuan, Shandong, and Hebei. In Bozhou, many legends about Chen Tuan are still widely circulated, such as the story of Chen Tuan's seclusion and the story of Chen Tuan's supernatural powers in observing people he met, which are well-known to everyone, including women and children. Information source: Anhui Provincial Intangible Cultural Heritage Protection Center Information source: Anhui Provincial Intangible Cultural Heritage Protection Center