St. Luke 2 tells us that Mary and Joseph took Jesus to Jerusalem to perform her purification rites and Christ's redemption rites as first-born male. In the course of these events, the aged holy man Simeon and the prophetess Anna speak of the promises of redemption. Simeon speaks in his hymn of Christ as "a light to lighten the nations." This phrase is a summary of Christ's mission and the theme of the Epiphany season. It is also an indication of what we are about as Christ's Church. We have received the light of Christ, and we seek to reflect His light in our lives.