When we nurse grudges, the person clinging to a resentment often pays a high price in anxiety, hostility, perhaps depression. What follows from that for many people, says Robin Casarjian of the Lionheart Foundation, are health-related symptoms. “And it stops you,” she says, ‘from really being able to be fully present to yourself, and to other relationships. So forgiving frees you. Forgiveness frees the forgiver.” This insight informs her fascinating work with inmates in prison, at-risk youth and others.