Book excerpt: Everyone experiences times of sadness, trials, and pain. But what happens when grief and depression seem so overwhelming that we feel like giving up? As the founder of World Challenge, Inc., David Wilkerson worked with troubled people of every type: students, parents, alcoholics, delinquents, businessmen, pastors, teachers, and drug addicts. In this hopeful and encouraging book, Wilkerson examines the universal problem of discouragement. He shows readers how to let God heal their wounds, restore their faith, and give them genuine, lasting peace.