C.S. Lewis and the Problem of God - Paperbackby David Werther (Author) Understanding C. S. Lewis's vocation is essential for reading his works well, as is knowing how he came to it: his long and winding philosophical journey and reoccurring experiences of 'Joy.' Lewis discounted 'proofs' in philosophical theology but offered key arguments in support of theism per se, and Christianity in particular. His account of "mere Christianity" shows the centrality of self determination, an emphasis on