The Gemara (Talmud) in Sukkah tells us "l'asid lavo,” at the end of days, Hakadosh Baruch Hu (The Holy One, blessed be He) will take the yetzer hara (evil inclination), will take the Soton (Satan), "v'shachto," Hashem will kill him, "befnei hatzadikim ub'fnei haresha'im," in front of the righteous and in front of the wicked. And the Gemara explains "halalu bochim v'halalu bochim," both groups will be crying bitter, bitter tears. The tzadikim cry because at that moment they see him as a mighty, powerful mountain. And they say to themselves how could we have conquered this? The resha'im cry because they see him as a thin thread — how could we have fallen for such a little obstacle, how could we have destroyed ourselves?