It is here, between Madaura and Thagaste, during the eager years of youth, that he gathered together the seeds of sensations and images which, later on, were to burst forth into fiery and boiling metaphors in the _Confessions_, and in his homilies and paraphrases of Holy Scripture. Later on, he will not have the time to observe, or he will have lost the power. Rhetoric will stretch its commonplace veil between him and the unceasing springtide of the earth. Ambition will turn him away from those sights which reveal themselves only to hearts unselfish and indifferent. Then, later on, Faith will seize hold of him to the exclusion of all else. He will no longer perceive the creation save at odd moments in a kind of metaphysical dream, and, so to speak, across the glory of the Creator. But in these youthful years all things burst upon him with extraordinary violence and ecstasy. His undulled senses swallowed greedily the whole banquet offered by this wide world to his hunger for pleasure. The fugitive beauty of things and beings, with all their charms, revealed itself to him in its newness: _novissimarum rerum fugaces pulchritudines, earumque suavitates_. This craving for sensation will still exist in the great Christian teacher, and betray itself in the warm and coloured figures of his style. Of course, he was not as a worldly describer, who studies to produce phrases which present an image, or arranges glittering pictures--all such endeavours he knew nothing about. But by instinct, and thanks to his warm African temperament, he was a kind of impressionist and metaphysical poet. If the rural landscape of Thagaste is reflected in certain passages--the pleasantest and most well known--of the _Confessions_, all the intellectual part of Augustin's work finds its symbolical commentary here in this arid and light-splashed plain of Madaura. Like it, the thought of Augustin has no shadows. Like it too, it is lightened by strange and splendid tints which seem to come from far off, from a focal fire invisible to human eyes. No modern writer has better praised the light--not only the immortal light of the blessed, but that light which rests on the African fields, and is on land and sea; and nobody has spoken of it with more amplitude and wonder. The truth is, that in no country in the world, not even in Egypt, in the rose-coloured lands of Karnak and Luxor, is the light more pure and admirable than in these great bare plains of Numidia and the region of the Sahara. Is there not enchantment for the eyes of the metaphysician in this play of light, these nameless interfulgent colours which appear flimsy as the play of thought? For the glowing floating haze is made of nothing--of lines, of gleam, of unregulated splendour. And all this triumph of fluctuating light and elusive colour is quenched with the sun, smoulders into darkness, even as ideas in the obscure depths of the intelligence which reposes....