Play is always a very intense emotional interaction. Be it between sadist and masochist, Dominant and submissive, or Master and slave. Contrary to the common belief, actual emotions are revealed and sometimes triggered in play. Unlike sex, a known quantity that we learn about from very early age and the western culture is preoccupied with, which we practice often, play is new to many of us. Even experienced players have played much less than say a few hundred times in their lives.