According to a new study published in the Scandinavian Journal of Psychology, joyful people are more forgiving than sad people. But, can inner optimism help you go forward, or does letting go make you happier? “Both” might be the answer: Forgiving someone for a previous offense may make you feel better whether you begin joyously or not. Forgiveness may be difficult, especially when the offender provides a fake apology or nothing at all. However, it is frequently the healthiest way ahead.