In the closest thing we have to an autobiography, C. S. Lewis, an unfailingly honest and perceptive observer of self, here shares the story of his personal spiritual journey. With characteristic candor and insight, he describes how his “search for joy” led him from the conventional Christianity of his childhood to a youthful atheism, and finally back to an assured Christianity compatible with his formidable intellect. With no pretense, Lewis describes his early schooldays, his experiences in the trenches during World War I, and his undergraduate life at Oxford, where he reasoned his way to God. Lewis’ “surprise” holds continuing interest not only for admirers of his work but for any modern seeker concerned with the compatibility of the rational and the spiritual.