Luke 1:46-55 helps us see what moved Mary to sing—and how what she saw can move us to sing this Christmas as well. Mary’s song was not naïve optimism; it was the overflow of encountering the character of God. In her moment of fear, uncertainty, and costly obedience, she discovered the reality of God breaking into her life as she experienced these 3 truths: God’s presence, God’s power, and God's mercy. And if we, like Mary, learn to see God breaking into our lives in these 3 ways our hearts, too, will be moved to sing with deep and lasting joy.