Commentary Par XXI 64-72

Peter's answer to Dante's first question is more circuitous, but reflects the same problem: Dante's inability to think beyond the limits of a human comprehension of love.  Peter's affection for Dante is not greater than that felt by any others among the saved in Paradise, that is to say, it is not 'personal.'  We may remember Casella, in Purgatorio II, whose greeting was very personal indeed, as a kind of control for our measurement of this affection.