In celebrating Christmas, they will continue to do it and one day discover why.
The mystery hidden for ages and generations but now revealed to his saints. To them God chose to make known how great among the Gentiles are the riches of the glory of this mystery, which is Christ in you, the hope of glory.Colossians 1: 26-27
Chesterton believed there was a certain message that was inescapable, hidden like a mystery, even in the festive decorations that lined the streets at Christmas. On this seventh day of Christmastide, consider those red and green ribbons of bows on gifts, there is a message of sacrifice and resurrection endemic in that combination of color.
“If the world wanted what is called a noncontroversial 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 newborn child at all. Similarly, you cannot suspend the idea of a newborn child in the void or think of him without thinking of his mother. You cannot visit the child without the 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 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.” – GK Chesterton, The Everlasting Man
“In spite of all sorts of intellectual irritations and pedantic explaining away, human beings will almost certainly go on observing this winter feast in some fashion. If it is for them only a winter feast, they will be found celebrating it with winter sports. If it is for them only a heathen feast, they will keep it as heathens do. But the great majority of people will go on observing forms that cannot be explained; they will keep Christmas Day with Christmas gifts and Christmas benedictions; they will continue to do it; and some day suddenly wake up and discover why.” – G.K.Chesterton †, On Christmas, Generally Speaking, 1929