These are miracles of the star. But the greatest miracle of Christmas is that this squalling, tightfisted tiny newborn is God himself entering the human plane. There is the prolonged labor, the transition phase, where rational women lose their composure, and then, usually through great exertion, the baby is expelled from his mother's womb. The baby's head crowns, and then a slightly blue face appears, followed quickly by shoulders, and the baby emerges, slick and slightly bloody. And precious, very precious.
Birth is primitive and human, the final product of the human reproductive system.
It is skin upon skin, and attended with stress and pain. The child is no store-bought doll but flesh and blood, very much alive, and, at the most basic level, a new journeyer on earth. So when we view the newborn Christ Child seeking nourishment at his mother's breast, we are viewing God himself in human flesh. It is an awesome miracle, a miracle that brought amazement long ago to both Mary and Joseph, participants in the miracle. We even know the purpose of this miracle of incarnation.