However, I don't want to waste time with all of that. Basically, what you need to understand is that post-modernity is made up of far more than just the content of philisophical thought which resulted from the philisophical revolution of the twentieth century. Actually, the philisophical revolution was in response to the scientific revolution. Postmodern philosophy is to some degree reflected in most aspects of postmodern culture, however, it is much bigger than just a philosophy. The list goes on and on.
Postmodern spirituality is even different from postmodern philosophy.
There is a book that I would highly recommend to you. Webber goes into great detail about how postmodernism is ripe for the church to influence. Actually, Sweet bases a great deal of his book on concepts that are found in Webbers book. Other authors to look at are Jimmy Long, Stanley Grenz and David S. Dockery. There are many more, but the ones I listed are some of my favorite.