This ancient five-volume Daoist text was written before 400 A.D. Although it was later included in the Daoist Canon during the Ming Dynasty, the important information contained in these five short chapters represents the secret “Cavern” teachings that originally accompanied ancient Daoist internal alchemy training. This special teaching is intended to help free a disciple from the mental overshadowing of the “cultural trance” and to awaken their heart and mind.
Therefore, because this mystical cultivation text was traditionally used in ancient China to spiritually activate and energize a disciple’s internal alchemy training, it was presented to my students as an essential companion to my “Daoist Internal Alchemy Neigong and Weigong Training” textbook.