It's very fitting that on the Fourth Sunday of Advent, we hear the story of the Annunciation.
The angel Gabriel greets Mary with, "Hail, full of Grace! The Lord is with you." But what does this mean, to be full of grace? What does it mean for the Lord to be with you?
The answers to these questions aren't easy - even Mary was "greatly troubled" and "pondered" their meaning.
When Mary told the angel to let it "be done according to your word", she said yes to being with God, yes to being full of grace. Her yes affirmed this greeting - just as when we say yes to God, we are filled with His grace.
Just as John the Baptist cried out to prepare the way of the Lord, Advent is a time for us to truly prepare ourselves to be with the Lord.
We can never carry the Lord like Mary did, because she literally and physically had Him with her - she carried Him in her womb. We can, however, be "pregnant" with Christ by carrying him in our hearts.
The Word was made flesh, and dwelt among us. God chose to come into the world through Mary, through her yes. Let us pray that in this last week of Advent, we will say yes to the ultimate Christmas gift and also share God with the world by carrying his grace in our hearts.