Namkhai Norbu's Yantra yoga is the one, he has a teacher who is based in Italy at one of the centres, there is more a process of being taught the practices, but not so much, deep retreat, to truly master the Tummo, There is a moderate requirement to read between the lines a bit a lot of the students, don't seem to really understand that the foundations of tummo are taught within the system. Or make a distinction between rhythmic breathing, and the holds associated with it and how this lead to the tummo. Is pretty intense though, and could be really stupid to practice to intensely alone and without guidance. Energy like that can really send you off also, if your doing the practice a bit incorrectly energy can get stuck in the throat in the head. All that's a bit random and stream of consciousness, but most of the relevant cautions are in there but maybe not all the required explanations to justify the cautions. Don't Lung out hearty panters or get to hot headed & mad.
