Yom Kippur is the Jewish day of atonement. It is one of the most sacred days in Judaism, where followers fast and reflect on the past year. These reflections are focused on introspection and repentance. At Exeter, many Jewish students, teachers, and other members of the community observe Yom Kippur. The fast and end of the holiday is concluded by the shofar, a traditional ram-horn trumpet, being played.