I remember the first time I "got it", and once I got it, I was pro instantly.
I took a very large dose of LSD and was standing a few meters away from a 70k sound rig. I just stood there and let the bassline move my body, seemlingly automatic, then you just use your arms to "curve around" the melodies and rythms", kinda like dancing "around" it, flowing seemlessly into different patterns and designs. Its weird to explain, but it works...