“The older I get, the less I seem to know for sure. It’s not that I lack wisdom, but life is not a clear-cut, fixed matter but an ever-changing, fluid experience. Each moment is new and is filled with the wonder and mystery of the unknown,” writes respected author and therapist James P. Krehbiel, who ponders why things are the way they are, as he tries to answer the all-important question: What does he know for sure anyway?