What is the fate of the angry and sullen in Dante's Inferno?

In Dante's Inferno, the fate of the angry and sullen is described as being stuck in the slime of the river Styx. This area is significant as it serves as a physical representation of their internal states; the raging anger of these souls manifests in their violent struggles against one another, while the sullen sink beneath the murky waters, unable to express their resentment. This setting illustrates the consequences of their emotions—anger leads to eternal conflict while sullen individuals are trapped in their own despair, reflecting their inability to find redemption or peace. It creates a strong imagery of how their negative feelings not only affect their existence in life but also dictate their punishment in the afterlife.