What I've read is, they believe anal sex (agitation of the coccyx) awakens the 'kundalini energy' at the base of the spine and this opens the person up, psychically, for purposes both good and ill.
What I've read is, they believe anal sex (agitation of the coccyx) awakens the 'kundalini energy' at the base of the spine and this opens the person up, psychically, for purposes both good and ill.