I was sitting in a large meditation hall in a converted novitiate in central Massachusetts when I reached into my pocket for my iPhone. A woman in the front of the room gamely held a basket in front of her, beaming beneficently, like a priest with a collection plate. I duly surrendered my little device, only to feel a sudden pang of panic on my way back to my seat. If it hadn’t been for everyone staring at me, I might have turned around immediately and asked for it back. But I didn’t. I knew why I’d come here.