If you drive south of San Antonio, Texas on Applewhite Road, past the fire station and the Toyota plant, and pull over just shy of the Medina River, you can walk a few hundred feet through tranquil forest and patchy sunlight to where a small bridge crosses a burbling stream just out of sight of the highway. There, on certain evenings, when the last rays of light cut through deepening shadows, and the sound of the wind has faded from the tree tops, you may have an experience you cannot…
