For in _La Cathédrale_ Huysmans does but carry further the principle which he had perceived in _En Route,_ showing, as he does, how inert matter, the art of stones, the growth of plants, the unconscious life of beasts, may be brought under the same law of the soul, may obtain, through symbol, a spiritual existence. He is thus but extending the domain of the soul while he may seem to be limiting or ignoring it; and Durtal may well stand aside for a moment, in at least the energy of contemplation, while he sees, with a new understanding, the very sight of his eyes, the very staff of his thoughts, taking life before him, a life of the same substance as his own. What is Symbolism if not an establishing of the links which hold the world together, the affirmation of an eternal, minute, intricate, almost invisible life, which runs through the whole universe? Every age has its own symbols; but a symbol once perfectly expressed, that symbol remains, as Gothic architecture remains the very soul of the Middle Ages. To get at that truth which is all but the deepest meaning of beauty, to find that symbol which is its most adequate expression, is in itself a kind of creation; and that is what Huysmans does for us in _La Cathédrale._ More and more he has put aside all the profane and accessible and outward pomp of writing for an inner and more severe beauty of perfect truth. He has come to realise that truth can be reached and revealed only by symbol. Hence, all that description, that heaping up of detail, that passionately patient elaboration: all means to an end, not, as you may hastily incline to think, ends in themselves. It is curious to observe how often an artist perfects a particular means of expression long before he has any notion of what to do with it. Huysmans began by acquiring so astonishing a mastery of description that he could describe the inside of a cow hanging in a butcher's shop as beautifully as if it were a casket of jewels. The little work-girls of his early novels were taken for long walks, in which they would have seen nothing but the arm on which they leant and the milliners' shops which they passed; and what they did not see was described, marvellously, in twenty pages.