All religions value forgiveness, but only Christianity requires it. Internalizing anger is destructive to our spiritual health and can destroy families, marriages, and even churches. But what about our physical health? Is there a relationship between a spirit of unforgiveness and cancer? Between forgiveness and healing? How do you really forgive? After thorough medical, theological, and sociological research and clinical experience at Cancer Treatment Centers of America (CTCA), author and pastor Michael Barry has made a startling discovery: the immune system and forgiveness are very much connected. Through the inspiring stories of five cancer patients, Barry helps readers identify and overcome the barriers that prevent healing and peace. See how a breast cancer patient named Jayne experienced spiritual and physical renewal when she learned to forgive.