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I used to practise Wing Chung.
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Everybody have fun tonight ...
Anyhoo, I'm wondering if the OP has ever utilized flotation. For those who aren't familiar, it's a method where you go into a tank filled with a few inches of water-salt mixture that will allow you to float motionlessly. The tanks are usually designed to block out all light. If the water is set at the right temperature, you forget you're in water at all. It's complete sensory deprivation. There's one at a spa I visit in Denver. Last time the water was cold, though, and I shivered the whole time.
According the the proprietor of the spa, this method turns off parts of your brain that haven't rested since birth, and is the closest thing to returning to the womb. Usually a person is in the tank for an hour. The first time I did it -- no meditation experience at all -- I gained a kind of relaxation I haven't experienced in a long time, and this feeling lasted about 10 days. I'm very aware this could have been caused by placebo, or the massage I got afterward.
Here's more info on the whole thing