As early as the 2nd century BC, there was a Daoist temple known as the Shrine of the Western Peak located at its base. Daoists believed that in the mountain lives the god of the underworld. The temple at the foot of the mountain was often used for spirit mediums to contact the god and his underlings. Unlike Taishan, which became a popular place of pilgrimage, Huashan, because of the inaccessibility of its summits, only received Imperial and local pilgrims, and was not well visited by pilgrims from the rest of China.[1] Huashan was also an important place for immortality seekers, as many herbal Chinese medicines are grown and powerful drugs were reputed to be found there.[2] Kou Qianzhi (365–448), the founder of the Northern Celestial Masters received revelations there, as did Chen Tuan (920–989), who spent the last part of his life in hermitage on the west peak. In the 1230s, all the temples on the mountain came under control of the Daoist Quanzhen School.[3] In 1998, the management committee of Huashan agreed to turn over most of the mountain's temples to the China Daoist Association. This was done to help protect the environment, as the presence of taoists and nuns deters poachers and loggers.[4]