Since Sacred Slut and Glamourpuss asked for more information, I'll add just a bit to the somewhat overblown description of a Buddhist meditation exercise posted previously. First, though, I'd like to add that I have no desire to convert or convince anybody that my way in the world is somewhat right. I'm quite aware that it's not for everybody, and I offer these ideas simply because they work for me, for the benefit of anyone who might be interested in such things.
Sacred Slut asks "what's the point", and then argues that Buddhism's attempt to "erase consciousness" is counterproductive.
Speaking for myself, the answer is that the point of such practice is to experience a different kind of consciousness in which there is genuine freedom. We're not trying to erase consciousness at all, but to find it. The frantic mental activity that is called consciousness in common vernacular is, for us, a rather hollow phenomenon. For myself, the practice is actually quite scientific, since I do nothing except follow the evidence of my own experience.
I practice because I'm happier and freer for it. I did not find this freedom in traditional scientific pursuit, though I did indeed try mightily for a long while. Science didn't make me happy. This does.
Glamourpuss then concurred with Sacred, at least partially, saying that she felt more akin to the practice of trantra than Buddhism.
This is fine. In reality, true tantra arose out of Hindu and Buddhist traditions, and all Buddhists would have genuine admiration for disciples of tantra.
While tantra today is sometimes criticized for a hedonistic practice, in truth the goal of all tantric practice is the pursuit of enlightenment in a single lifetime, rather than in repeated rebirths. So rather than avoid earthly, sensual experience, these energies are welcomed and harnessed in the hopes that new consciousness will be opened. Tantra is a perfectly viable spiritual practice.
True tantra welcomes all the pleasures (and pains) of life, knowing that they are natural and exist for a purpose. These are extremely powerful energies, though, and practitioners are always cautioned to be diligent. The goal isn't pleasure for its own sake, but pleasure as an energy of awakening.
By the way, Sacred Slut and Glamourpuss are extremly talented writers. You'd be well advised to check out their work. They are bookmarked in the list to the left.