Dān fáng ào lùn 丹房奧論

Mystery-Discourse on the Elixir Chamber

by 程了一 (Chéng Liǎoyī) — early Northern-Sòng Daoist alchemist

An early Northern-Sòng alchemical treatise on the “mysteries” (ào 奧) of the elixir-chamber (dān fáng 丹房) — a speculative/philosophical companion to the technical-practical Dān fáng xū zhī (KR5c0298). Dated 1020. Preserved as DZ 920 / CT 920 (Dòngshén bù, Zhòng shù lèi 洞神部眾術類).