The incarnation is not just something God did for us. It is also something we are to do for others. Being incarnational means going to where others are and dwelling with them to express the light and life of Jesus.
The original Christmas story is nothing like the pictures we see on Christmas cards and in advent calendars. It is far more scandalous, earthy and grisly than we like to think. But it reveals a God who is more incredible than we can imagine, making himself staggeringly vulnerable in order to identify with us and restore our humanity.