Sometimes I wonder if mind and soul slow down a dancer's body. Ruud Vermeij the competitive dance psychologist said in a Blackpool lecture that all the thinking should be done before and after dance, not during it (like no thinking during intercourse, ha ha ha). In the moment it should be all action by the body -- like a tennis player on court facing 130 MPH service has no time to think. If he even tries to think he has lost. Nobody is more keen on research and development than me, but on the dance floor perhaps it is time for delivery. I tried practising tango in a room with all lights turned off (there was minimal light and I did not close my eyes). Hopefully in the dark my body reverts to instinct, becoming more self-aware in the absence of visual input, more resolute to act without referring to the mind. As for sound that is unavoidable in dancing to music.