But even with that we return to the more specially Christian symbol in the same tradition; the perfect pattern of the keys. This is a historical and not a theological outline, and it is not my duty here to defend in detail that theology, but merely to point out that it could not even be justified in design without being justified in detail—like a key. Beyond the broad suggestion of this chapter I attempt no apologetic about why the creed should be accepted. But in answer to the historical query of why it was accepted, and is accepted, I answer for millions of others in my reply; because it fits the lock; because it is like life. It is one among many stories; only it happens to be a true story. It is one among many philosophies; only it happens to be the truth. We accept it; and the ground is solid under our feet and the road is open before us. It does not imprison us in a dream of destiny or a consciousness of the universal delusion. It opens to us not only incredible heavens, but what seems to some an equally incredible earth, and makes it credible. This is the sort of truth that is hard to explain because it is a fact; but it is a fact to which we can call witnesses. We are Christians and Catholics not because we worship a key, but because we have passed a door; and felt the wind that is the trumpet of liberty blow over the land of the living.
VI
The Five Deaths of the Faith
It is not the purpose of this book to trace the subsequent history of Christianity, especially the later history of Christianity; which involves controversies of which I hope to write more fully elsewhere. It is devoted only to the suggestion that Christianity, appearing amid heathen humanity, had all the character of a unique thing and even of a supernatural thing. It was not like any of the other things; and the more we study it the less it looks like any of them. But there is a certain rather peculiar character which marked it henceforward even down to the present moment, with a note on which this book may well conclude.
I have said that Asia and the ancient world had an air of being too old to die. Christendom has had the very opposite fate. Christendom has had a series of revolutions and in each one of them Christianity has died. Christianity has died many times and risen again; for it had a god who knew the way out of the grave. But the first extraordinary fact which marks this history is this: that Europe has been turned upside down over and over again; and that at the end of each of these revolutions the same religion has again been found on top. The Faith is always converting the age, not as an old religion but as a new religion. This truth is hidden from many by a convention that is too little noticed. Curiously enough, it is a convention of the sort which those who ignore it claim especially to detect and denounce. They are always telling us that priests and ceremonies are not religion and that religious organisation can be a hollow sham; but they hardly realise how true it is. It is so true that three or four times at least in the history of Christendom the whole soul seemed to have gone out of Christianity; and almost every man in his heart expected its end. This fact is only masked in medieval and other times by that very official religion which such critics pride themselves on seeing through. Christianity remained the official religion of a Renaissance prince or the official religion of an eighteenth-century bishop, just as an ancient mythology remained the official religion of Julius Caesar or the Arian creed long remained the official religion of Julian the Apostate. But there was a difference between the cases of Julius and of Julian; because the Church had begun its strange career. There was no reason why men like Julius should not worship gods like Jupiter forever in public and laugh at them forever in private. But when Julian treated Christianity as dead, he found it had come to life again. He also found, incidentally, that there was not the faintest sign of Jupiter ever coming to life again. This case of Julian and the episode of Arianism is but the first of a series of examples that can only be roughly indicated here. Arianism, as has been said,