I was moved to tears by the response of Parisians as their beloved 800-year-old cathedral burned. They gathered on the banks of the Siene and sang hymns. The sound of the Ave Maria, so sorrowing and yet so beautiful, haunts me. I have listened to it so many times this morning. I'm not sure what it evokes in me, but it is something sad yet also hopeful about the human spirit, maybe also about reverence, about resilience, about love.