Rosh Hashanah, the Jewish New Year, is one of the holiest days in the Jewish calendar. The holiday marks the beginning of the Ten Days of Awe, during which Jews reflect upon their actions over the past year. It is said that on Rosh Hashanah, God inscribes the fate of each person for the upcoming year in the Book of Life or the Book of Death. The book is sealed and the verdict determined ten days later on Yom Kippur, the Day of Atonement. Rabbi Irwin Kula, co-president of The National Jewish Center for Learning and Leadership, describes the significance and observance of Rosh Hashanah.