A true Master is not a man, or in some cases a woman, that likes to fuck hard or control. People like that are asses. It's also illegal and called abuse. A proper Dom is a person that, no matter what will be there for you. Not just sexually, but emotionally and physically. He's not a sub's abuser, but her ultimate comforter. Likewise, with a sub, she has an inner need to please her Master. No matter where they are or what they are doing, the simple tone of his voice makes her body alert and willing to obey his every wish.