Over Christmas I met my new grandniece who, at the age of one month, loves to dance. Any kind of rhythmic motion soothes and enthralls her. Whether we grooved to Stevie Wonder or waltzed to Frank Sinatra, her cries would cease, her muscles relax, and her eyes brightly turn to the swirling landscape around her. While others in the family were curious to discover the object of little Emma’s gaze, my wonder was with the process of how she responded…