Religion

and does not involve any emotion toward the perpetrator of the transgression. It is difficult to accomplish, but when positive lessons are learned from negative experiences new perspectives are achieved that changes one’s life in a positive way. This change can’t be achieved if you wait for the perpetrator to apologize for the transgression s/he committed against you. When you can forgive your transgressor without feeling any need to understand why the transgressor did what s/he did, you will free yourself of any negative feelings towards the transgressor, and in turn, free yourself of anger and hate, and restore your ability to love. IMO because some transgressions are extremely painful this act of forgiveness may take many lifetimes, hence reincarnation.