Holidays set the rhythm of a Jewish community. For many Jews, festivals and weekly Sabbath observances lend structure and stability. Several holidays celebrate Biblical and historical events. Every spring, for example, Passover recalls the escape from slavery in Egypt. Hanukkah, in the winter, hails a military victory and rededication of the Temple in Jerusalem. In the fall, Rosh Ha-Shanah and Yom Kippur span ten days of self-examination and repentance. Many holidays are both seasonal and historical. They reflect Jewish roots in the land of Israel - the ancient cycle of planting and harvesting and pilgrimages to Jerusalem. Jews continue to invest rituals with new meanings as well - messages of freedom, faith, and continuity that link traditional Jewish values to modern Jewish lives.