We are ignorant tourists, liable to much error in trying to seek motives in artists who worked seven hundred years ago for a society which thought and felt in forms quite unlike ours, but the medieval pilgrim was more ignorant than we, and much simpler in mind; if the idea of an ornament occurs to us, it certainly occurred to him, and still more to the glassworker whose business was to excite his illusions. An artist, if good for anything, foresees what his public will see; and what his public will see is what he ought to have intended--the measure of his genius. If the public sees more than he himself did, this is his credit; if less, this is his fault. No matter how simple or ignorant we are, we ought to feel a discord or a harmony where the artist meant us to feel it, and when we see a motive, we conclude that other people have seen it before us, and that it must, therefore, have been intended. Neither of the transept roses is treated like this one; neither has the effect of a personal ornament; neither is treated as a jewel. No one knew so well as the artist that such treatment must give the effect of a jewel. The Roses of France and of Dreux bear indelibly and flagrantly the character of France and Dreux; on the western rose is stamped with greater refinement but equal decision the character of a much greater power than either of them. No artist would have ventured to put up, before the eyes of Mary in Majesty, above the windows so dear to her, any object that she had not herself commanded. Whether a miracle was necessary, or whether genius was enough, is a point of casuistry which you can settle with Albertus Magnus or Saint Bernard, and which you will understand as little when settled as before; but for us, beyond the futilities of unnecessary doubt, the Virgin designed this rose; not perhaps in quite the same perfect spirit in which she designed the lancets, but still wholly for her own pleasure and as her own idea. She placed upon the breast of her Church--which symbolized herself--a jewel so gorgeous that no earthly majesty could bear comparison with it, and which no other heavenly majesty has rivalled. As one watches the light play on it, one is still overcome by the glories of the jewelled rose and its three gemmed pendants; one feels a little of the effect she meant it to produce even on infidels, Moors, and heretics, but infinitely more on the men who feared and the women who adored her;--not to dwell too long upon it, one admits that hers is the only Church. One would admit anything that she should require. If you had only the soul of a shrimp, you would crawl, like the Abbe Suger, to kiss her feet.