I did ecstasy once in my life and it was a great experience. Then about a month later I was thinking about that E trip again, how it felt, what we did and all, and I could almost feel it. Then I looked in the mirror and concentrated more on the feeling and my pupils dilated as big as when I was on E. So is it possible that once you do some drug you can get the feeling back ( maybe not as strong but kind of ) ? Its all in the brain right so I guess its possible if you practice ? Do you have any similar experiences ? Thanks for sharing :)