The Easter Vigil is the greatest and most solemn liturgy of the year in the Catholic Church. It commemorates Jesus' death and resurrection. The vigil has four main parts: the Service of Light, Liturgy of the Word, Liturgy of Baptism, and Liturgy of the Eucharist. The Service of Light focuses on the lighting of the new fire and Paschal Candle, which symbolizes Christ as the light of the world. The candle is blessed and marked with the year, cross, and Greek letters Alpha and Omega to represent Jesus as the beginning and the end. The lit candles are then processed throughout the church.