Yè Fǎshàn 葉法善 (614–720; CBDB id 92379), zì Dàoyuán 道元, was a celebrated Táng Daoist priest and ritualist of the early-eighth century, native of Kuòzhōu Sōngyáng 括州松陽 (modern Sōngyáng 松陽 county, Zhèjiāng). He served the Táng court under Gāozōng 高宗, Wǔ Zétiān 武則天, Zhōngzōng 中宗, Ruìzōng 睿宗, and Xuánzōng 玄宗, was made Yuèguó gōng 越國公 (Duke of Yuè), and was widely credited in TángSòng hagiography with the Tiānxīn zhèngfǎ 天心正法 corpus and a wide range of exorcistic and weather-controlling ritual feats. His biography appears in the Jiù Tángshū 舊唐書 191 and Xīn Tángshū 新唐書 204; an epitaph composed by Lǐ Yōng 李邕 survives. According to [[KR5c1227|DZ 1227 Tàishàng zhùguó jiùmín zǒngzhēn bìyào]] 4.1a, Yè was the source of the Gǔsuǐ língwén 骨髓靈文, one of the foundational Tiānxīn zhèngfǎ writings; [[KR5a0220|DZ 219 Língbǎo wúliàng dùrén shàngjīng dàfǎ]] 66.1a names Yè as the figure who hid the Shénhǔ yǐnshū 神虎隱書 in a cave on Lónghǔ shān 龍虎山. He is also widely cited as alchemical authority — including as one of the joint commentators on [[KR5a0228|DZ 227 Zhēn lónghǔ jiǔxiān jīng]] — though as with most Táng xiān attributions in alchemical works, the attributions are likely pseudepigraphic.