Huìyán Zhìzhāo 晦巖智昭 (“Obscure-Cliff Zhìzhāo”) of Yuèshān 越山 (northern Zhèjiāng / the ancient Yuè region), Southern-Sòng Chán monk and compiler of the Rén tiān yǎnmù 人天眼目 (KR6q0081), the canonical Southern-Sòng compendium of Five-Houses doctrinal formulas. No independent biographical material survives: lifedates, native place (beyond the Yuè regional marker), and lineage affiliation are all undocumented. Zhìzhāo’s own compositional preface (1188 late winter) describes a twenty-year program of itinerant inquiry across the Sòng Chán institutional network, collecting formulas, gathas, and interpretive verses from received books, temple steles, oral teaching, and handed-down chuísòng 垂頌 gathas of elder monks. The final editorial assembly was completed at the Tiāntái Wànniánshān sì 天台萬年山寺 — a major Línjì-side monastery of the late twelfth century.
The editorial persona is one of scholarly compiler rather than author-master: Zhìzhāo states explicitly that he has preserved source-wording “bù gǎn zēng sǔn” 不敢增損 (“not daring to add or subtract”), though he acknowledges imposing a corrected shīchéng cìdì 師承次第 lineage-succession order on the Five Houses. This stance is distinct from the twelfth-century Chán author-commentator persona of Juéfàn Huìhóng 覺範慧洪 (1071–1128), whom Zhìzhāo nevertheless cites extensively.
Works in the Kanripo corpus: KR6q0081 Rén tiān yǎnmù 人天眼目 (6 juan, T48 n2006). DILA A001266.