When Virgile and Dante, at the dawn of Easter Sunday of the year 1300, land on the beach of the Anti-purgatory, after having crossed the infernal circles and reparcouru, through a dark casing, all the space of the center of the earth on its surface, the impression of happiness is intense, almost paradise... On the contrary, the narratives of imaginary journeys of the same era describe purgatory which are kinds of hell: the same fires, the same tortures - only shortened, only "in the long term" Dante breaks abruptly with this tradition; his Purgatory seems rather tending towards Paradise. Despite the torments told, the reader's memory keeps the image of a mountain in the middle of the sea, in the light of the sun, inhabited by angels, rhythmic by the manifestations of art - sculptures, songs, encounters of poets, image of a place where to become good means to become light...