Lily of the Valley symbolizes Advent and Incarnation of Christ. It also represents purity of the Virgin Mary. That’s why sometimes it appears in Annunciation scenes. The valley signifies the World and the lily represents Christ. It is also related to the Tree of Life of Eden in the Song of Songs. It renders the pure life, promise of immortality and salvation. Every year it announces the arrival of spring. It stands for humility because of its corolla facing down.