This title is the best I have read yet on the missions church concept. While it is not an easy read, it does provides a multitude of insights on what it means for the church to go beyond the four walls of the church. Hirsch begins by defining the true missionary spirit of being a follower of Jesus Christ. He describes how the dawn of the age of Christendom stifled that spirit, and how the church has suffered enormously as a result. He then speaks of "Apostolic Genius" and "Communitas," two phenomenons both rooted in the early, New Testament church prior to Christendom.This book is a great read. Just be forewarned: it will shake to the core the traditional, "attractional" way of doing church!