Investigating the methods of Wim Hof may yield some useful data points in this search. His book is painfully long winded and self-indulgent, and I'm only half way through without finding any direct methods, but the separate synopsis of the method I've found through google has thus far proven to be both invigorating and grounding when I've tried it.
http://highexistence.com/the-wim-hof-method-revealed-how-to-consciously-control-your-immune-system/
This thread is for:
- Perfectly natural and functional ideas that came from a spiritual, religious, occultist, parapsychologist etc. source (perhaps with some "baggage")
- Techniques that are bit difficult to explain and may be seen by the gullible as magic, but they actually seem to do something, even if that something is just a novel way to trick the brain.
Both things that are actually useful and "stage tricks" are accepted in this thread.