I don't know about OBE's, but once, on a pretty strong dose of 'cid, I was listening to Jon Anderson's utterly GENIUS, amazing, and highly ecstatic Yes-era solo album "Olias of Sunhillow", I was sitting on the floor, meditation style, legs crossed, hands resting on knees palms up middle finger and thumb touching, spine as straight as I could manage, breathing deeply and consciously...
When the album hit the last and most powerful of MANY immense full-on climaxes after a long long build near the end of the record, suddenly, out of nowhere I had a sudden HUGE Kundalini start at the base of my pelvis, work its way up my spine like a fuse sparkling, cause a feeling like touching an electrical socket to shoot down my arms and fingertips, and continue to exit out the top of my head, leaving my scalp tingling, and my mind and heart in the most cosmic-unified state of total bliss I have ever felt! It was short, but still one of the most powerful and intense and memorable experiences I ever had on LSD!
I was skeptical about the existence of "Kundalini" before this, but it was totally real and wildly intense and unlike anything else I ever felt, before or since... quite clearly some rare and very special THING our nervous systems are capable to doing, facilitated by some
just-so combination of LSD, music, posture and breath. Just wow, totally and utterly wow, hehe!
I also now believe in some true Magical Potential that is somehow manifesting through Jon Anderson!
http://en.wikipedia.org/wiki/Olias_of_Sunhillow
http://www.amazon.com/Olias-Sunhillow-Jon-Anderson/dp/B000005S6X