Huò Jìzhī 霍濟之, zì Jūchuān 巨川, was a Southern-Sòng Daoist nèidān 內丹 practitioner of Pílíng 毗陵 (modern Jìnlíng 晉陵 / Chángzhōu 常州). He inherited a set of Jīndān tú 金丹圖 diagrams said to have been the work of Chén Tuán 陳摶 (d. 989), passed down through his great-grandfather, then through Lín Língsù 林靈素 and Guō Sānyì 郭三益 (whose 1119 preface is appended), back to his family. His father, a dàoshì 道士, grasped the meaning of the diagrams and composed the kǒujué 口訣 (“oral formula”) on them but died in 1254 before publishing it; Huò Jìzhī had it printed shortly after, between 1254 and 1257, as [[KR5a0291|Xiāntiān jīndān dàdào xuán’ào kǒujué 先天金丹大道玄奧口訣]] (DZ 279). The 1249 preface by Yóu Yù 尤焴 and the 1251 preface by Liú Zǐchéng 劉子澄 both record meeting Huò Jìzhī, who carried the dānjué in his sleeve, and praise his teaching as squarely in the Wùzhēn piān 悟真篇 lineage.