They had their faces twisted toward their haunches and found it necessary to walk backward, because they could not see ahead of them. ...And since he wanted so to see ahead, he looks behind and walks a backward path.
Through me you pass into the city of woe: Through me you pass into eternal pain: Through me among the people lost for aye. Justice the founder of my fabric moved: To rear me was the task of power divine, Supremest wisdom, and primeval love. Before me things create were none, save things Eternal, and eternal I shall endure. All hope abandon, ye who enter here.
The infernal storm, eternal in its rage, sweeps and drives the spirits with its blast; it whirls them, lashing them with punishment. When they are swept back past their place of judgment then come the shrieks, laments, and anguished cries; there they blaspheme God's almighty power.