What in the 7 hells is tantra?

I've heard that a lot when it comes to massage, I've done some research on it but the description is all about this spiritual mumbo jumbo while the guy is getting his prostate massaged and the girl getting release from their g spot?

Is it really just fancy masturbation?

I feel like for the price I could just go jerk off and then have a 'real' massage.

I am not experienced with Tantra, but from what I hear from those that are into it, is that it's a very erotic and almost a teasing experience.

Its teasing until the spirit and body are able to orgasm together. It's a total. Mind body experience but you must learn to open shakras etc...pretty spiritual stuff..