From dean of the Harvard Business School to president of BYU-Idaho, Kim B. Clark has had a career filled with pressures of one kind or another. He describes a particularly stressful time: "One night, I awoke from what must have been a nightmare. I felt very anxious, worried, beset with strange thoughts and feelings of dread and darkness. . . . I rolled out of bed onto my knees and asked Heavenly Father to help me. . . . As I got up, a phrase of scripture came into my mind. It was just a fragment, but it was the key I needed: `For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world . . .' (Ephesians 6:12)." The author's personal quest, born that night, to understand the armor of God became this thought-provoking and uniquely helpful book.