In my conversations with submissive women, one thing stands out prominently and that is very few men realize the importance that submission holds for her. It is far more than a physical experience, it is an emotional connection with you so meaningful that it contains her very soul. Though d/s is often very light and spontaneous and sometimes treated as a special sensual playtime, for her it is what is most real in her life. It is NOT a game. To treat it as such is to do her a great injustice for it trivializes her greatest expression of love.