one wholly integrated to the cycle of reproduction. Then the entire sequence—eleven Zibah-days, seven Niddah-days—forms an account of the woman’s relationship to the procreative cycle, which involves three possibilities: she wholly participates, having sexual relations, receiving semen and not emitting blood; she is wholly excluded, not having sexual relations at all, and she is temporarily excluded but remains sexually accessible, which is why the Torah makes provision for the status of one who,