Zhū zhēn shèng tāi shén yòng jué 諸真聖胎神用訣

Divine Use-Instructions of the Sagely Embryo of the Various Perfected

Anonymous; Sòng

A Sòng compilation of embryonic-breathing (shèng tāi 聖胎 = “sagely embryo”, the mature Daoist nèi dān term for the cultivated inner-elixir-embryo) instructions from various Daoist Perfected (zhēn rén 真人). Preserved as DZ 826 / CT 826.