Defining Forgiveness - Forgiveness ≠ Forgetting ≠ Condoning
In psychology, "forgiveness" carries a precise definition that differs from everyday usage. According to Enright & Fitzgibbons (2000), forgiveness is "a willful process in which the person who has been unjustly hurt releases negative emotions (anger, resentment, desire for revenge) toward the offender and instead comes to direct compassion, generosity, and even love toward them." What is crucial in this definition is what forgiveness does not include.
First, forgiveness is not "forgetting." Erasing the memory of being hurt is not a requirement of forgiveness; rather, the essence of forgiveness lies in accurately recognizing what happened and then transforming one's emotional response to it. Second, forgiveness is not "condoning" or "justifying." It is possible to forgive without acknowledging that the other person's actions were right. Third, forgiveness is not synonymous with "reconciliation." Forgiveness is an internal process that can be carried out unilaterally, whereas relationship repair (reconciliation) is a separate process requiring effort from both parties.
McCullough, Pargament, & Thoresen (2000) conceptualized forgiveness as a "motivational change." Specifically, they view forgiveness as a process in which "avoidance motivation" and "revenge motivation" toward the offender decrease while "benevolence motivation" increases. This conceptualization is highly measurable and has been widely adopted as the foundation for empirical research.
Worthington's (2005) REACH Model - Five Steps of Forgiveness
The REACH model developed by Worthington (2005) is an intervention model that structures the forgiveness process into five steps, widely used in both clinical settings and couples counseling. REACH is an acronym formed from the initial letters of each step.
R (Recall the hurt): The first step is to face the hurtful experience directly rather than avoiding it. Rather than suppressing emotions, one objectively recognizes what happened and how it felt. However, this step must be carried out in a safe environment, and professional support is recommended when trauma responses are strong.
E (Empathize with the offender): One attempts to understand the situation from the offender's perspective - why they acted as they did. This is not about justifying their actions but about recognizing human weakness and limitations. Worthington argues that empathy is the most powerful facilitator of forgiveness.
A (Altruistic gift of forgiveness): One recalls past experiences of being forgiven by others and decides to give forgiveness as a "gift" to the offender. This altruistic motivation positions forgiveness not as mere "disappearance of emotion" but as an active, willful act.
C (Commit to forgiveness): Making the decision to forgive public (writing it in a journal, telling a trusted person, etc.) increases the stability of the decision. Forgiveness is not completed in a single decision; when anger or resentment resurfaces, one must repeatedly return to the decision to forgive.
H (Hold on to forgiveness): It is natural for negative emotions to resurface over time, and this does not signify a failure of forgiveness. When emotions resurface, one self-affirms that "I have already decided to forgive" and maintains the state of forgiveness.
Forgiveness and Health - Reduction of Stress Hormones
The positive effects of forgiveness on physical and mental health have been confirmed in numerous empirical studies. In the theoretical model of Worthington & Scherer (2004), a state of unforgiveness triggers chronic stress responses, which in turn lead to physical health problems such as cardiovascular disease, immune dysfunction, and chronic pain.
In the experimental study by Witvliet, Ludwig, & Vander Laan (2001), participants were asked to recall past hurtful experiences and their physiological responses were compared under two conditions: an "unforgiving response (maintaining resentment)" and a "forgiving response (practicing empathy and forgiveness)." In the unforgiving condition, elevated heart rate, increased skin conductance response, and increased corrugator muscle tension were observed, confirming sympathetic nervous system activation. In the forgiving condition, these physiological stress responses were significantly reduced.
In the longitudinal study by Toussaint, Owen, & Cheadle (2012), people with a higher tendency toward forgiveness showed lower mortality risk five years later. This effect is explained by forgiveness preventing chronic elevation of the stress hormone cortisol and reducing inflammatory markers. Lawler et al. (2005) also reported associations between forgiveness tendency and lower blood pressure and improved heart rate variability.
In romantic relationships, chronic resentment toward a partner becomes a persistent source of stress, forming a cognitive pattern that processes all interactions within the relationship as "threats." Forgiveness functions as a neurophysiological reset that breaks this stress response loop, allowing interactions with the partner to be experienced as "safe" once again.
Big Five and Forgiveness Tendency - Agreeableness as the Strongest Predictor
The relationship between personality traits and forgiveness tendency has been confirmed in multiple meta-analyses. Balliet's (2010) meta-analysis demonstrated that among the Big Five, agreeableness is the most powerful predictor of forgiveness. People high in agreeableness tend to interpret others' intentions favorably and orient toward cooperative solutions in interpersonal conflicts, making them more likely to reach forgiveness.
Neuroticism is a negative predictor of forgiveness. People high in neuroticism have stronger emotional reactions to hurtful experiences and longer durations of negative emotions. They are also prone to rumination, repeatedly recalling hurtful experiences, which maintains and reinforces anger and resentment. Berry, Worthington, O'Connor, Parrott, & Wade (2005) showed that the interaction between neuroticism and rumination best predicts difficulty in forgiving. Related books can also be found at related books (Amazon).
Extraversion shows a weak positive correlation with forgiveness. People high in extraversion value social connections and therefore have strong motivation to repair relationships, tending to maintain relationships through forgiveness. Conscientiousness also has a positive association with forgiveness, likely because traits such as "keeping promises" and "fulfilling responsibilities" promote forgiveness through commitment to the relationship.
The association between openness and forgiveness is relatively weak, but people high in openness have a greater ability to incorporate diverse perspectives, making it easier for them to understand the situation from the offender's standpoint (perspective-taking) and thus to execute the E (Empathize) step of the REACH model.
The Psychological Mechanism of Being Unable to Forgive - The Trap of Rumination
The greatest psychological mechanism that makes forgiveness difficult is "rumination." McCullough, Bono, & Root (2007) showed that the frequency of rumination about hurtful experiences is the variable that best predicts delays in forgiveness. Rumination is a cognitive pattern of repeatedly thinking about hurtful experiences and the accompanying negative emotions; unlike intentional problem-solving, it is circular thinking that does not lead toward resolution.
There are multiple mechanisms by which rumination impedes forgiveness. First, rumination maintains and reinforces negative emotions. Each time a hurtful experience is recalled, anger and sadness are reactivated, preventing the natural decay of emotions. Second, rumination strengthens negative attributions toward the offender. Internal, stable, and global attributions such as "they did it on purpose" and "they are fundamentally a bad person" become fixed. Third, rumination reinforces a victim identity, forming a cognitive framework in which forgiving seems equivalent to "trivializing one's own suffering."
In the review by Nolen-Hoeksema, Wisco, & Lyubomirsky (2008), rumination is comprehensively discussed as a maintenance factor for depression, anxiety disorders, and PTSD. In the context of forgiveness in romantic relationships, rumination about a partner's betrayal or hurtful behavior triggers a generalization that perceives the entire relationship as "dangerous," leading to avoidance of intimacy and excessive vigilance.
Longitudinal Studies of Forgiveness in Couples
Paleari, Regalia, & Fincham (2005) examined the bidirectional relationship between forgiveness and relationship satisfaction in a longitudinal study of 96 Italian couples. The results confirmed that not only did forgiveness tendency at Time 1 predict relationship satisfaction at Time 2 (six months later), but relationship satisfaction at Time 1 also predicted ease of forgiveness at Time 2. In other words, forgiveness and relationship satisfaction form a mutually reinforcing positive feedback loop.
Fincham, Beach, & Davila (2004) showed that the effects of forgiveness differ by gender. Women's forgiveness has a particularly strong effect on maintaining relationship satisfaction, while men's forgiveness contributes more strongly to preventing conflict recurrence. The "conditionality" of forgiveness is also an important variable. When the tendency to forgive unconditionally is too strong, a "forgiveness paradox" can arise in which the partner's problematic behavior is repeated.
McNulty's (2008) important study demonstrated that forgiveness is not always beneficial for relationships. When a partner's problematic behavior is serious and repetitive (violence, chronic infidelity, etc.), forgiveness can function as a signal that tolerates the continuation of problematic behavior, further reducing relationship quality. Forgiveness functions adaptively only when the partner demonstrates sincere remorse and a willingness to change their behavior.
Concrete Steps in the Forgiveness Process - A Practical Guide
The following outlines a practical forgiveness process based on research findings. These steps do not progress linearly but advance gradually with back-and-forth movement.
Step 1: Acknowledging emotions. The starting point is to fully feel one's hurt emotions without denying them. One validates one's own emotions: "It's natural to be angry," "It's natural to be sad." Gordon, Baucom, & Snyder (2004) showed that emotional suppression delays the forgiveness process.
Step 2: Reconstructing meaning. One reexamines how to position the hurtful experience within "the story of one's life." Through questions such as "What can I learn from this experience?" and "How has this experience helped me grow?", one aims to shift from a victim narrative to a growth narrative.
Step 3: Attempting empathy. One stands in the offender's perspective and tries to understand why they acted as they did. This is not justification of the act but recognition of human weakness and limitations. Batson (2011) has repeatedly confirmed that empathy is the most powerful facilitator of forgiveness.
Step 4: The decision to forgive. One carries out forgiveness not as an emotional state but as a willful decision. One makes a clear declaration of intent to oneself: "I choose to forgive this person." This decision is not made after negative emotions have completely disappeared; it is possible even while emotions remain.
Step 5: Maintaining and reaffirming forgiveness. When anger or resentment resurfaces, one reaffirms the decision to forgive. One tells oneself "I have already chosen to forgive" and consciously prevents entering a rumination loop. Over time, the frequency and intensity of resurfacing naturally diminish.