As is typical of Torah texts, the Megillah offers rare details, so the enumeration of the length of the party seems odd. Furthermore, since the verse already testifies to its lasting “many days,” the actual number of days seems all the more redundant. In his brilliant Ginzei HaMelech, Rabbi Eliezer Ginzburg brings the Vilna Gaon from his allegoric “al Derech Remez” commentary on Esther. The entire story of Esther, according to the Vilna Gaon, is an allegory for the struggle between one and one’s evil inclination, Yetzer Hara. On this verse, the Vilna Gaon quotes a Midrash that the phrase “many days” is indicative of pain. The Vilna Gaon proves from the Talmud (Shabbos 89b) that there are potentially 180 days out of the year when a person would not even consider sin, and those are the “many days of pain for the Yetzer Hara.” Rabbi Ginzberg posits that the monicker “many days of pain” can be equally applied to the other half of the year, the 180 days of pain for the the person fighting the Yetzer Hara, as the evil one “watches over the righteous, seeking his death” (Tehillim 37:32). How can a man be successful in this struggle? Rabbi Ginzburg suggests (from Toras haChida, Tazria 12:3) that there are 180 hours from the birth of a baby boy until it is appropriate to give him a bris. For those 180 hours, the father of the boy is too anxious about the mitzvah before him to even consider sin. In the merit of the 180 hours when the Yetzer Hara has no grasp on the father before the bris, both the father and the boy can be shielded from the Yetzer Hara for all of the difficult 180 days of the year for all the years of their lives.