Since reading it over ten years ago, I’ve had lodged in my mind an affectionate fascination with Chesterton’s Everlasting Man. It is a kind of intellectual tour de force of the history of religious thought as only possible from Chesterton’s singular mind and from the vantage point of the early 20th century. If you have some interest in understanding how paganism relates to Christianity, or how Christianity fulfills the philosophy of the classical era, you will enjoy it.
But this is a Christmas post, and so I want to walk you through a few selections from the first chapter of the second half of the book. The chapter is called The God in the Cave, referring to the tradition that the stable was actually a rocky cave. In this chapter Chesterton reflects on the symbolism and meaning of Christmas, teasing out implications from it that do not naturally spring to my mind. And yet, once I read them, they have a certain logic and an undeniable power. My goal here is to deepen your appreciation for Christmas and your wonder at the incarnation.
We start with a some paragraphs about the paradox of Christmas — that of the very high and very big (God) united with the very small and very weak (a baby).
A mass of legend and literature, which increases and will never end, has repeated and rung the changes on that single paradox; that the hands that had made the sun and stars were too small to reach the huge heads of the cattle. Upon this paradox, we might almost say upon this jest, all the literature of our faith is founded. It is at least like a jest in this, that it is something which the scientific critic cannot see. He laboriously explains the difficulty which we have always defiantly and almost derisively exaggerated; and mildly condemns as improbable something that we have almost madly exalted as incredible; as something that would be much too good to be true, except that it is true. When that contrast between the cosmic creation and the little local infancy has been repeated, reiterated, underlined, emphasised, exulted in, sung, shouted, roared, not to say howled, in a hundred thousand hymns, carols, rhymes, rituals, pictures, poems, and popular sermons, it may be suggested that we hardly need a higher critic to draw our attention to something a little odd about it; especially one of the sort that seems to take a long time to see a joke, even his own joke.
… Any agnostic or atheist whose childhood has known a real Christmas has ever afterwards, whether he likes it or not, an association in his mind between two ideas that most of mankind must regard as remote from each other; the idea of a baby and the idea of unknown strength that sustains the stars. His instincts and imagination can still connect them, when his reason can no longer see the need of the connection; for him there will always be some savour of religion about the mere picture of a mother and a baby; some hint of mercy and softening about the mere mention of the dreadful name of God. …
In other words, this combination of ideas has emphatically, in the much disputed phrase, altered human nature. There is really a difference between the man who knows it and the man who does not. Omnipotence and impotence, or divinity and infancy, do definitely make a sort of epigram which a million repetitions cannot turn into a platitude. It is not unreasonable to call it unique. Bethlehem is emphatically a place where extremes meet.
It is true, isn’t it, that even after a hundred thousand hymns, that joining of divinity and infancy retains an inexhaustible power? We return to it again and again. Now we turn to a passage where Chesterton argues that Christmas turned the universe inside out, placed heaven under the earth, and in so doing set off a kind of revolution.
It might be suggested, in a somewhat violent image, that nothing had happened in that fold or crack in the great grey hills except that the whole universe had been turned inside out. I mean that all the eyes of wonder and worship which had been turned outwards to the largest thing were now turned inward to the smallest. […] But it is true in a sense that God who had been only a circumference was seen as a centre; and a centre is infinitely small. It is true that the spiritual spiral henceforward works inwards instead of outwards, and in that sense is centripetal and not centrifugal. The faith becomes, in more ways than one, a religion of little things.
…
Whether as a myth or a mystery, Christ was obviously conceived as born in a hole in the rocks primarily because it marked the position of one outcast and homeless. Nevertheless it is true, as I have said, that the cave has not been so commonly or so clearly used as a symbol as the other realities that surrounded the first Christmas. And the reason for this also refers to the very nature of that new world. It was in a sense the difficulty of a new dimension. Christ was not only born on the level of the world, but even lower than the world. The first act of the divine drama was enacted, not only on no stage set up above the sight-seer, but on a dark and curtained stage sunken out of sight; and that is an idea very difficult to express in most modes of artistic expression. It is the idea of simultaneous happenings on different levels of life. Something like it might have been attempted in the more archaic and decorative medieval art. But the more the artists learned of realism and perspective, the less they could depict at once the angels in the heavens and the shepherds on the hills, and the glory in the darkness that was under the hills. …But in the riddle of Bethlehem it was heaven that was under the earth.
There is in that alone the touch of a revolution, as of the world turned upside down. It would be vain to attempt to say anything adequate, or anything new, about the change which this conception of a deity born like an outcast or even an outlaw had upon the whole conception of law and its duties to the poor and outcast. It is profoundly true to say that after that moment there could be no slaves. There could be and were people bearing that legal title, until the Church was strong enough to weed them out, but there could be no more of the pagan repose in the mere advantage to the state of keeping it a servile state. Individuals became important, in a sense in which no instruments can be important. A man could not be a means to an end, at any rate to any other man’s end.
That last paragraph is quite something. Was the incarnation the beginning of the end for slavery? Perhaps the end was far too long in coming, but there is no question that it was a set of Christians acting on their Christian convictions who led the push to abolish slavery, not pagans or secularists. It was a Christian impulse to dignify the slave, and then to free him.

Later in the chapter he turns to mythology and philosophy, themes which he has developed in the first half of the book. So keep in mind that we are entering partway through a length discussion. Still, I think it is worth considering:
Mythology had many sins; but it had not been wrong in being as carnal as the Incarnation. But something of the ancient voice that was supposed to have rung through the graves, it could cry again, ‘We have seen, he hath seen us, a visible god.’ So the ancient shepherds might have danced, and their feet have been beautiful upon the mountains, rejoicing over the philosophers. But the philosophers had also heard.
It is still a strange story, though an old one, how they came out of orient lands, crowned with the majesty of kings and clothed with something of the mystery of magicians. That truth that is tradition has wisely remembered them almost as unknown quantities, as mysterious as their mysterious and melodious names; Melchior, Caspar, Balthazar. But there came with them all that world of wisdom that had watched the stars in Chaldea and the sun in Persia; and we shall not be wrong if we see in them the same curiosity that moves all the sages. They would stand for the same human ideal if their names had really been Confucius or Pythagoras or Plato. They were those who sought not tales but the truth of things, and since their thirst for truth was itself a thirst for God, they also have had their reward. But even in order to understand that reward, we must understand that for philosophy as much as mythology, that reward was the completion of the incomplete.
Such learned men would doubtless have come, as these learned men did come, to find themselves confirmed in much that was true in their own traditions and right in their own reasoning. Confucius would have found a new foundation for the family in the very reversal of the Holy Family; Buddha would have looked upon a new renunciation, of stars rather than jewels and divinity than royalty. These learned men would still have the right to say, or rather a new right to say, that there was truth in their old teaching. But after all these learned men would have come to learn. They would have come to complete their conceptions with something they had not yet conceived; even to balance their imperfect universe with something they might once have contradicted. Buddha would have come from his impersonal paradise to worship a person. Confucius would have come from his temples of ancestor-worship to worship a child.
You may, at this point, if you are a good evangelical Protestant like me, start to feel things are getting a bit slippery. Is he granting too much here? After all, aren’t these false religions (Confucianism, Buddhism, etc)? Yes — and whatever light and truth were or are in them cannot reconcile us to God. But I think a careful and generous reading of his argument dodges the heart of these concerns, which I share. In fact, one can see here the genesis of much of C.S. Lewis’ later apologetical approach, that of Christianity as a fulfillment of more than the Old Testament, but of everything that was good about every system of belief anywhere — rather than a repudiation of it all.
Skipping down a bit, he returns to the Magi and the long history of mysticism and philosophy which they represented.
Here it is the important point that the Magi, who stand for mysticism and philosophy, are truly conceived as seeking something new and even as finding something unexpected. That tense sense of crisis which still tingles in the Christmas story and even in every Christmas celebration, accentuates the idea of a search and a discovery. The discovery is, in this case, truly a scientific discovery. For the other mystical figures in the miracle play; for the angel and the mother, the shepherds and the soldiers of Herod, there may be aspects both simpler and more supernatural, more elemental or more emotional. But the wise Men must be seeking wisdom, and for them there must be a light also in the intellect. …
The philosophy of the Church is universal. The philosophy of the philosophers was not universal. Had Plato and Pythagoras and Aristotle stood for an instant in the light that came out of that little cave, they would have known that their own light was not universal. It is far from certain, indeed, that they did not know it already. Philosophy also, like mythology, had very much the air of a search. It is the realisation of this truth that gives its traditional majesty and mystery to the figures of the Three Kings; the discovery that religion is broader than philosophy and that this is the broadest of religions, contained within this narrow space. The Magicians were gazing at the strange pentacle with the human triangle reversed; and they have never come to the end of their calculations about it. For it is the paradox of that group in the cave, that while our emotions about it are of childish simplicity, our thoughts about it can branch with a never-ending complexity. And we can never reach the end even of our own ideas about the child who was a father and the mother who was a child.
I love the description of that Christmas scene as one which is limitless in its profundity and simplicity — we shall never reach the end of it. That’s something worth pondering this Christmas as we sit by the fire after dinner. Well this has gone long enough, but I leave you with two last paragraphs near the end of this remarkable chapter. Here Chesterton puts his finger on something of the unique ethos and spirit of Christmas, and the way it takes a hold on our minds and memories like nothing else.
Christmas for us in Christendom has become one thing, and in one sense even a simple thing. But like all the truths of that tradition, it is in another sense a very complex thing. Its unique note is the simultaneous striking of many notes; of humility, of gaiety, of gratitude, of mystical fear, but also of vigilance and of drama. It is not only an occasion for the peacemakers any more than for the merry-makers; it is not only a Hindu peace conference any more than it is only a Scandinavian winter feast. There is something defiant in it also; something that makes the abrupt bells at midnight sound like the great guns of a battle that has just been won. All this indescribable thing that we call the Christmas atmosphere only hangs in the air as something like a lingering fragrance or fading vapour from the exultant explosion of that one hour in the Judean hills nearly two thousand years ago. But the savour is still unmistakable, and it is something too subtle or too solitary to be covered by our use of the word peace. …
The truth is that there is a quite peculiar and individual character about the hold of this story on human nature; it is not in its psychological substance at all like a mere legend or the life of a great man. It does not exactly in the ordinary sense turn our minds to greatness; to those extensions and exaggerations of humanity which are turned into gods and heroes, even by the healthiest sort of hero-worship. It does not exactly work outwards, adventurously, to the wonders to be found at the ends of the earth. It is rather something that surprises us from behind, from the hidden and personal part of our being; like that which can some times take us off our guard in the pathos of small objects or the blind pieties of the poor. It is rather as if a man had found an inner room in the very heart of his own house, which he had never suspected; and seen a light from within. It is as if he found something at the back of his own heart that betrayed him into good.
Thanks for reading, and Merry Christmas.