Daniel M. Ingram:
I would guess that you are on the right track.
In general when I think heat, I think 3C and A&P.
In terms of getting that sort of thing back, energy phenomena come and go, but tumo breathing practices and the like can make them more likely.
Thank you. I'm not sure that I want it back although I suppose it would be handy if I were stuck in a snowstorm. I occasionally see traces of the phenomenon when I am concentrating hard at work, but usually take it there as a sign to back off and have a glass of water.