God made your heart for love, joy, peace, and wholeness. But pastors say that more than 90% of their congregations struggle with unforgiveness—and unforgiveness can make us forget what we were made for.What if the most pervasive sin of our day is invisible, hidden deep inside our hearts? What if it affects every aspect of our lives and relationships so quietly and insidiously that most of us miss it altogether? Bruce Wilkinson believes unforgiveness is that sin.