In this week’s parsha, Parshat Vayishlach, the Torah tells us about the famous story regarding Yaakov and the angel that he fought. One night, Yaakov went to sleep and in his dream, he finds himself fighting someone. The famous commentator Rashi states that this person that Yaakov fought was the angel of Esav, Yaakov’s brother. The fight lasts all night and ends with the angel tearing out Yaakov’s sciatic nerve and then blessing Yaakov, giving him the name Yisrael, because Yaakov struggled with both man and G-d and prevailed. At the end of this portion in the Torah, we are commanded not to eat the sciatic nerve, as a memory of Yaakov’s struggles.