Christian hero because he undergoes trials and tribulations in his search to find the souls true path in life. Dante also portrays himself as everyman. He does this by showing that he also suffers from sin. In The Inferno, hell is in a spiral shape, and is divided up by the seriousness of the sin committed.
The sinners are stuck in their location in hell where there punishment fit the crime that they committed.
At the top of hell is where what Dante considered the least sinful people belonged. This is the home of the people who suffered from lust, and gluttony. The sins got worse going down until the very bottom was reached.