When we pass with Dante from the Inferno...

§ 31. When we pass with Dante from the Inferno to Purgatory, we have indeed more light and air, but no more liberty; being now confined on various ledges cut into a mountain side, with a precipice on one hand and a vertical wall on the other; and, lest here also we should make any mistake about magnitudes, we are told that the ledges were eighteen feet wide, and that the ascent from one to the other was by steps, made like those which go up from Florence to the church of San Minieto. oil paintings online
Lastly, though in the Paradise there is perfect freedom and infinity of space, though for trenches we have planets, and for cornices constellations, yet there is more cadence, procession, and order among the redeemed souls than any others; they fly, so as to describe letters and sentences in the air, and rest in circles, like rainbows, or determinate figures, as of a cross and an eagle; in which certain of the more glorified natures are so arranged as to form the eye of the bird, while those most highly blessed are arranged with their white crowds in leaflets, so as to form the image of a white rose in the midst of heaven. abstract oil paintings for sale

§ 32. Thus, throughout the poem, I conceive that the first striking character of its scenery is intense definition; precisely the reflection of that definiteness which we have already traced in pictorial art. But the second point which seems noteworthy is, that the flat ground and embanked trenches are reserved for the Inferno; and that the entire territory of the Purgatory is a mountain, thus marking the sense of that purifying and perfecting influence in mountains which we saw the mediæval mind was so ready to suggest. The same general idea is indicated at the very commencement of the poem, in which Dante is overwhelmed by fear and sorrow in passing through a dark forest, but revives on seeing the sun touch the top of a hill, afterwards called by Virgil "the pleasant mount—the cause and source of all delight." art oil painting reproduction