In personality of Jesus, the God become person and we are not alone. In the image of the baby God shows us that He is real personality - person who completely realize our being.
Jesus tried not only physical ache but and ache, felt with rejection, treachery. He tied sin. He tried from our lies, forgotten virtue. The fair tried our sin to open a way towards perpetuity.
Lord saves all who believe in him. There are articles for Christmas and the Bible. Before Christmas the persons were pagans. Different countries celebrate Christmas in different ways.