It was, in other words, a substantial education that engaged deeply with the intellectual tradition and challenged him to grow.Gary Selby sees Lewis's expression as an indication of the kind of transformation that is both possible and necessary for the Christian faith, and he contends that spiritual formation comes about not by retreating from the physical world but through deeper engagement with it.By considering themes such as our human embodiment, our sense of awareness in our everyday experiences, and the role of our human agency--all while engaging with the writings of Lewis, who himself enjoyed food, drink, laughter, and good conversation--Selby demonstrates that an earthy spirituality can be a robust spirituality.