The mediaeval faiths were still vivid when the first Italian painters began their work, and the sincere endeavour of these men was to set forth in beautiful and worthy form the truths of Christianity. The eyes of the worshipper should no longer have a mere stock or stone to contemplate: his imagination should be helped by the dramatic presentation of the scenes of sacred history, and his devotion be quickened by lively images of the passion of our Lord. Spirit should converse with spirit, through no veil of symbol, but through the transparent medium of art, itself instinct with inbreathed life and radiant with ideal beauty. The body and the soul, moreover, should be reconciled; and God's likeness should be once more acknowledged in the features and the limbs of man. Such was the promise of art; and this promise was in a great measure fulfilled by the painting of the fourteenth century. Men ceased to worship their God in the holiness of ugliness; and a great city called its street Glad on the birthday-festival of the first picture investing religious emotion with aesthetic charm. But in making good the promise they had given, it was needful for the arts on the one hand to enter a region not wholly their own--the region of abstractions and of mystical conceptions; and on the other to create a world of sensuous delightfulness, wherein the spiritual element was materialised to the injury of its own essential quality. Spirit, indeed, spake to spirit, so far as the religious content was concerned; but flesh spake also to flesh in the aesthetic form. The incarnation promised by the arts involved a corresponding sensuousness. Heaven was brought down to earth, but at the cost of making men believe that earth itself was heavenly. At this point the subject of our inquiry naturally divides into two main questions. The first concerns the form of figurative art specially adapted to the requirements of religious thought in the fourteenth century. The second treats of the effect resulting both to art and religion from the expression of mystical and theological conceptions in plastic form.