Many ancient cultures believed their orgasms were mystical experiences, and there can be little doubt that such a perception had its roots in the accumulated folk wisdom of the ancient people’s own distant ancestors. It should be of no wonder, really, that the rapturous sensation of the immediate aftermath of orgasm was revered as something on a parallel with a religious experience from the moment human beings began to develop spirituality- the belief, often prompted by times of crisis, that there is meaning, purpose, inspiration and answers about the infinite to be had in life.
Jonathan Margolis (The Intimate History of the Orgasm)