Q. How can you wear a mask on Purim and pretend to be someone else?
The Rebbe of Lubavitch says that every Jew alternates between Jacob and Esau – one moment the studious yeshivah bachur living amongst his books; the next minute is a sportsman, hunting, shooting and fishing in the fresh air. “The voice is the voice of Jacob but the hands are the hands are the hands of Esau” (Gen. 27:22).
The world needs both, but Judaism prefers Jacob and is comforted by the thought that when Jacob puts on his Esau mask he knows it’s a pretence and that Esau can never be his real self.