The culmination of the Yamim Noraim (Days of Awe) is the fast day of Yom Kippur (The Day of Atonement). This is the day at the conclusion of which, according to tradition, God seals the Books of Life and Death for the coming year. The day is devoted to communal repentance for sins committed over the course of the previous year. Because of the nature of Yom Kippur and its associated rituals, it is the most solemn day in the Jewish calendar.
