The purpose of the whole [the Comedy] and of this portion [the Paradiso] is to remove those who are living in this life from the state of wretchedness, and to lead them to the state of blessedness.
Here we find the moat of thieves. And just as a lizard, with a quick, slick slither, Flicks across the highway from hedge to hedge, Fleeter than a flash, in the battering dog-day weather, A fiery little monster, livid, in a rage, Black as any peppercorn, came and made a dart At the guts of the others, and leaping to engage One of the pair, it pierced him at the part Through which we first draw food; then loosed its grip And fell before him, outstretched and apart.
It may be that a more subtle person would find for this thing a reason of greater subtlety: but such is the reason that I find, and that liketh me best.