Hell, Canto 19

Simony is the sin of exploiting one's position in the church to make money, and the eighth Circle of Hell is a chasm containing the popes guilty of this sin. Their punishment is to be thrust upside down in a stone hole, with the soles of their feet on fire.

This picture depicts Pope Nicholas III. Dante has just been ranting against the corruption of the church, and against Nicholas in particular. In response, Pope Nicholas has writhed in anger, causing an alarmed Dante to leap into Virgil's arms.

Notice how Dante seems to have literally shrunk from fear. Notice also the blue-lighting that gives an atmosphere of unworldly horror to this dynamic picture.