the closest i can describe it is being on mdma. it came as waves of energy going up my spine. i could feel it escaping through my eyes and mouth and top of my head. i was putting out an astronomical amount of heat too.  i could also see my breath, it was almost pearlescent at times. the only thing i didn't get was the auditory hallucinations often described as rattling cans.  it wasn't a conscious effort on my part and you wouldn't believe the circumstances leading up to it but i was in a rather stressful situation.
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