Today is the first Sunday of Advent, which is also the first Sunday of the new liturgical year. The Advent season includes the four Sundays that precede Christmas. Advent is a time of preparation for the coming of the Lord. In this season, we recall two central elements of our faith: the final coming of the Lord in glory and the incarnation of the Lord in the birth of Jesus. The key themes of the Advent season are watchful waiting, preparation, and justice.