Dia Zerva finds pain as cathartic because she does erotic. It allows her to focus her thoughts all on one stage and permit the world. The tightness of this bondage makes her feel secure. Cyd Black’s potency makes her feel safe. It is strange what goes on in her head. She wouldn’t trade it for anything on earth, although everything he does hurts her . Entry and bondage make her feel whole. She is nothing.