From G.K. Chesterton in The Everlasting Man:
Here begins, it is needless to say, another mighty influence for the humanisation of Christendom. If the world wanted what is called a non-controversial aspect of Christianity, it would probably select Christmas. Yet it is obviously bound up with what is supposed to be a controversial aspect (I could never at any stage of my opinions imagine why); the respect paid to the Blessed Virgin. When I was a boy a more Puritan generation objected to a statue upon my parish church representing the Virgin and Child. After much controversy, they compromised by taking away the Child. One would think that this was even more corrupted with Mariolatry, unless the mother was counted less dangerous when deprived of a sort of weapon. But the practical difficulty is also a parable. You cannot chip away the statue of a mother from all round that of a new-born child. You can not suspend the new-born child in mid-air; indeed you cannot really have a statue of a new-born child at all. Similarly, you cannot suspend the idea of a new-born child in the void or think of him without thinking of his mother. You cannot visit the child without visiting the mother; you cannot in common human life approach the child except through the mother. If we are to think of Christ in this aspect at all, the other idea follows as it is followed in history. We must either leave Christ out of Christmas, or Christmas out of Christ, or we must admit, if only as we admit it in an old picture, that those holy heads are too near together for the haloes not to mingle and cross.