Purgatorio (The Divine Comedy - Purgatory, Illustrated)

Epic poem written by Dante Alighieri between 1308 and his death in 1321; the author's own title for the work was simply Comedìa.
Allegorically, the Purgatorio represents the Christian life. Christian souls arrive escorted by an angel, singing in exitu Israel de Aegypto. In his Letter to Cangrande, Dante explains that this reference to Israel leaving Egypt refers both to the redemption of Christ and to "the conversion of the soul from the sorrow and misery of sin to the state of grace." Appropriately, therefore, it is Easter Sunday when Dante and Virgil arrive.