The doughnut-shaped machine swallows the nun, who is outfitted in a plain T-shirt and loose hospital pants rather than her usual brown habit and long veil. She wears earplugs and rests her head on foam cushions to dampen the device's roar, as loud as a jet engine. Supercooled giant magnets generate intense fields around the nun's head in a high-tech attempt to read her mind as she communes with her deity.