Charles Taylor's massive book A Secular Age has been highly influential in understanding the cultural world we live in today. You may not wade through the whole thing, but you'll want to grasp a few key terms and ideas he presents. In this episode, Cole and Terry discuss secularism, the porous and buffered self, and the immanent frame. 

Also mentioned in this episode: 

"Cracks in the Secular" - James K. A. Smith, Comment