God's light shines in all of His creation, from the Star of Bethlehem, to the angel proclaiming Christ's birth, to the Son of God Himself, the light of the world.  This is His light, He illuminated darkness, gives us guidance, and shows us how to love one another.

The Light that began in Bethlehem was life.  And this life, Jesus Christ, was the Light of all humanity.  The light still shines in the darkness, and the darkness has never put it out.  And it all began on a silent, holy night...long ago...