“Press him [the one pontificating Dante without knowing the whole], rather, for an intelligent opinion of the Ship of Souls and Peter’s Gate; on Buonconte, Sapia, and Arnaut Daniel; on the Prayer of the Proud, the theology of Free Judgement, Dante’s three Dreams, the Sacred Forest, and te symbolism of the Beatrician Pageant. If he cannot satisfy the examiners on these points, let him be to you as a heathen man and a publican. But if he can walk at ease in death’s second kingdom, then he is a true citizen of the Dantean Empire; and though he may still feel something of a stranger in Paradise, et the odds are he will come to it in the end. For the Inferno may fill one with only an appalled fascination, and the Paradiso may daunt one at first by it’s intellectual severity; but if one is drawn to the Purgatorio at all, it is by the cords of love, which will not cease drawing till they have drawn the whole poem into the same embrace.”
On Dante’s Purgatorio
Dorothy Sayers, Introduction to Dante’s Purgatory