The miracle and beauty of Christmas is much bigger than a humble baby lying in a lowly manger. It’s a reminder that God is with us. It’s the incredibly Good News that Jesus Christ knows what it means to suffer. He’s a faithful High Priest who knows how to sympathize with us in all our weaknesses (Hebrews 4:15).
Dorothy Sayers masterfully puts it this way in "The incarnation means that for whatever reason God chose to let us fall . . . to suffer, to be subject to sorrows and death—he has nonetheless had the honesty and the courage to take his own medicine. . . . He can exact nothing from man that he has not exacted from himself. He himself has gone through the whole of human experience—from the trivial irritations of family life and the cramping restrictions of hard work and lack of money to the worst horrors of pain and humiliation, defeat, despair, and death. . . . He was born in poverty and . . . suffered infinite pain—all for us—and thought it well worth his while.”[i]
[i] Dorothy L. Sayers, “The Greatest Drama Ever Staged,” in Creed or Chaos? And Other Essays in Popular Theology, Hodder and Stoughton.