There’s a program on NPR called “The TED Radio Hour.” I was listening to it yesterday as I drove across town to a concert. Fascinating! Here’s the entire TED talk that’s referenced in the show. Note here that I (although perhaps not Dr. Winch) would make a distinction between mental/emotional health on the one hand and spiritual health on the other. But I found his ideas to be very intriguing. Be sure you listen to the whole thing. He has some great stories!