damdao

This one is from the perspective of Tibetan medicine and has a concise practice of dream yoga and dream analysis. The Tibetan Art of Dream Analysis

https://authenticneigong.com You can find threads in General Discussion, I think. Very good teaching and methods, highly recommendable if you want to know how to build the dantian and do faqi.

Even today there are lineages of external alchemy, medical branch https://classicalchinesemedicine.org/conversations-with-the-salt-doctor/