Dante Alighieri's Divine Comedy is considered a prototypical work of medieval literature. Written in the early 14th century, it describes Dante's pilgrimage through Hell (Inferno), Purgatory (Purgatorio), and Heaven (Paradiso) guided by Virgil and Beatrice. The poem is rich in Christian symbolism, especially the numerology of threes representing the Holy Trinity and nines representing spiritual perfection. It encapsulates medieval Christian views of the afterlife and salvation of the soul.