Gāo Dàokuān 高道寬 (hào Yuánmíng lǎorén 圓明老人, “Old Man of Round Brightness”, 1195–1277) was a Quánzhēn 全真 Daoist hermit of Mount Zhōngnán 終南山 in Shǎnxī, a disciple of the early Quánzhēn patriarchs Mǎ Dānyáng 馬丹陽 (1123–1183) and Lǐ Chōngxū 李冲虛. He is the author of Shàngshèng xiūzhēn sānyào 上乘修真三要 KR5a0279 (DZ 267) — “Three Essentials for the Cultivation of the True according to the Superior Vehicle” — a two-juan illustrated nèidān 內丹 manual featuring a ten-stage xìnmǎ 馬 (“horse-of-the-mind”) allegory adapted from the Chán shíniú tú 十牛圖 (“Ten Ox-Herding Pictures”) tradition: the only fully-illustrated horse-training programme preserved in the Daozang. CBDB id 106303 confirms the lifedates (1195–1277).