Forgiveness requires forbidden knowledge about human nature, an understanding of the hard-to-grasp fact that we are all “motivationally innocent,” we all “mean well” from our own point-of-view. This curious truth is the “inside narrative” that is always eclipsed by our own “inside narrative.” And each act of forgiveness deepens this paradoxical knowledge until you pre-forgive all that you are yet to witness and suffer from.
 
See Melville’s Billy Budd or Camus’ Stranger for reference.