Late-Southern-Sòng nèidān 內丹 commentator, zì Zǐyě 子野. Author of one of the three commentaries collected in [[KR5a0143|DZ 142 Zǐyáng zhēnrén Wùzhēn piān sānzhù]] (alongside Xuē Dàoguāng 薛道光 and Chén Zhìxū 陳致虛). His Wùzhēn piān preface — preserved at the head of DZ 142 — opens with the maxim “When upright men practise heretical methods, the heretical methods all become upright; when heretical men practise upright methods, the upright methods all become heretical” 正人行邪法邪法悉歸正邪人行正法正法悉歸邪, and emphasises the yīnyáng foundation of the elixir-art and the danger of the sānfēng cǎizhàn 三峰採戰 sexual misreading. His personal dates and biography are unknown; he is mentioned by Chén Zhìxū in [[KR5c1067|DZ 1067 Shàngyángzǐ jīndān dàyào]] (preface 5a) and in the editorial apparatus of [[KR5a0144|DZ 143 Sānchéng bìyào]]. No CBDB record found.