Osho, formerly known as Rajneesh, introduced his version of Tantra to the West in the 1960’s.
He was controversial, but he was an intelligent and prolific writer.
Here are some quotes from Osho:
Tantra is the natural way to God, the normal way to God. The object is to become so completely instinctual, so mindless, that we merge with ultimate nature – that the woman disappears and becomes a door for the ultimate, the man disappears and becomes a door for the ultimate…This is the tantric definition of our sexuality: the return to absolute innocence, absolute oneness. The greatest sexual thrill is not a search for thrills, but a silent waiting, utterly relaxed, utterly mindless. One is conscious, conscious only of being conscious. One is consciousness. One is contented but there is no content to it. And then there is a great beauty, great benediction.
Question: ‘What is tantric sex… a sex which is a meditation based on certain techniques?’
Osho: If you are too technique oriented, you will miss the mystery of Tantra. It is pseudo-Tantra that is based on techniques, because if techniques are there, ego will be controlling. Then you will be doing it – and doing is the problem, doing brings the doer. Tantra has to be a non-doing; it cannot be technical. You can learn techniques.. – certain breathing so that coitus can become longer…. but you are controlling. It will not be wild, it will not be innocent and it will not be meditation either. It will be mind – how can it be meditation? The mind will be controlling.
I do agree with him on that last paragraph. Which is why we teach so few techniques, and prefer to create an atmosphere where meditation is more likely to occur naturally and spontaneously.