" We can reject the literal notion of Hell along the lines of Dante’s Inferno, an actual location where bad people are punished for their sins. We can dismiss that as naive. But, calling on ‘second naïveté' can we believe that there are some things a person might do during his lifetime, the memory of which will haunt him for the rest of his days and make it hard for him to feel good about the kind of person he is? Can we believe that there are some moments in our lives that we can look back on, opportunities we missed that never came our way again, and bear the consequences of having missed that opportunity for as long as we live? ‘What might have been’ is a pretty good definition of Hell. "

― Harold S. Kushner , Nine Essential Things I've Learned About Life