Which character in "The Divine Comedy" aids Dante in his journey through hell?

In "The Divine Comedy," Virgil serves as Dante's guide through the realms of Hell and Purgatory. As a symbol of human reason and wisdom, Virgil represents Dante's quest for knowledge and understanding. He helps to navigate the complexities of sin and the consequences of human actions, illustrating the moral structure of the afterlife. Virgil’s presence is significant for Dante, as he embodies the philosophical ideas of the classical world and the moral guidance necessary for the spiritual journey.

Beatrice, while a crucial character in Dante's later journey through Paradise, does not assist him in Hell. Brutus and Petrarch do not have guiding roles in Dante's journey. Virgil's deep understanding of both the divine and the human experience makes him the perfect mentor for Dante as he encounters the various sinners and their unique punishments throughout Hell.