I just came across the website of John M. Hull and found a wealth thoughts on religion, spirituality and the overlap of the two. I especially enjoyed the link to his writings on Blindness and disability where you can find essays with the following titles: A Spirituality of Disability, Blindness and the Face of God and Open Letter from a Blind Disciple to a Sighted Savior. Not only has he written some great stuff, but he's put a lot of it online for our reading pleasure- enjoy.