Waiting.
They were waiting for the Messiah to come and change the world. They expected him to come as a conquering hero, riding on a white horse. But he came as a child.
Our current stage of adoption is a waiting one. All the details are basically done, now on for the waiting. Waiting for a child that will no doubt change our lives.
But the Christ child, now that's another kind of change. Could you imagine waiting for THAT child to enter the scene?
And that is what our celebration of Advent/Christmas should represent. Our kids wait in anticipation of opening presents. Representative of the perfect gift that God gave us in the Baby.