Jeff Warren, New York Times: “You want to cultivate the crackling intensity of the ninja,” Daniel Ingram told me. Ingram made a living as an emergency doctor, but his real passion was teaching advanced meditation. It was day one of a 30-day solitary retreat, and this was my first meditation instruction. We were sitting in Ingram’s straw bale guesthouse, a squat round building next to the main house at the end of a long country road in rural Alabama. Behind the house a thick forest buzzed with insect life.
Ingram stood and began to walk, arms outstretched and eyes shock-widened, as though his …
