Vayikra: Chapter 35

"The nakedness of your mother, shall you not uncover"


Rabbi Yosi says that the evil inclination always grows stronger through immoral sexual conduct alone, that all sins are attached to nakedness. When Malchut is uncovered, her children below are also uncovered; when she is covered all the grades return one by one and are all blessed, this is considered repentance because all the grades become repaired again.