Dante's Divine Comedy is a landmark work, which is written in powerful Italian verse and describes the poet's journey in hell, purgatory and heaven. At the beginning of the work, Dante described why he suddenly found himself in a "dark forest", which was a metaphor for the profound crisis he personally faced in the middle of his life. He was taken out of this desperate forest by the Roman poet Virgil; The latter represents the pinnacle of classical rationality and philosophy. Virgil led Dante to hell and purgatory. Later, Beatrice, Dante's deceased lover and representative of Christian wisdom and grace, succeeded Virgil and led Dante to heaven. In his travels, Dante not only met historical figures, but also met his contemporaries, who gained a place in later generations. Dante also learned from them and the guide why they met different fates. With the development of poetry, the poet himself got rid of despair, became intelligent and finally realized self-redemption.