Forgiveness is the intentional and voluntary process by which a victim undergoes a change in feelings and attitude regarding an offense, lets go of negative emotions such as vengeful, with an increased ability to wish the offender well. Forgiveness is different from condoning (failing to see the action as wrong and in need of forgiveness), excusing (not holding the offender as responsible for the action), forgetting (removing awareness of the offense from consciousness), pardoning (granted by a representative of society, such as a judge), and reconciliation (restoration of a relationship).
As a psychological concept and virtue, the benefits of forgiveness have been explored in religious thought, the social sciences and medicine. Forgiveness may be considered simply in terms of the person who forgives including forgiving themselves, in terms of the person forgiven or in terms of the relationship between the forgiver and the person forgiven. In most contexts, forgiveness is granted without any expectation of restorative justice, and without any response on the part of the offender (for example, one may forgive a person who is incommunicado or dead). In practical terms, it may be necessary for the offender to offer some form of acknowledgment, an apology, or even just ask for forgiveness, in order for the wronged person to believe himself able to forgive.
Most world religions include teachings on the nature of forgiveness, and many of these teachings provide an underlying basis for many varying modern day traditions and practices of forgiveness. Some religious doctrines or philosophies place greater emphasis on the need for humans to find some sort of divine forgiveness for their own shortcomings, others place greater emphasis on the need for humans to practice forgiveness of one another, yet others make little or no distinction between human and divine forgiveness.