In his biography for the Avatamsaka master Fazang(643–712), Tang Tae Ch'ǒnboksa kosajupǒn'gyǒng taedǒk Pǒpjang hwasang chǒn(Ch. Tang Da Jianfusi gu sizhu fanjing dadeFazang heshang zhuan) (Biography forUpādhyāya Fazang, the Late Bhadanta-translator andAbbot of Great Jianfusi of the Tang) composed ca.904, the Korean author Ch'oe Ch'iwon (Ch. CuiZhiyuan, 857–904) reports a ritual that Fazangperformed to pray for snow in order to prevent animminent drought. The ritual was executed in thewinter of 711, barely one year before Fazang'sdeath, beside a pond at the scenic mountain rangefifty li west of Chang'an – MountZhongnan.