Often, the spiritual side of the experience happens during these radical tests. Could it be that the subjects are having near-death experiences? While under such stressful situations, they will often see the tunnel that leads to the white light reported by people who die on operating tables in Earth hospitals and are subsequently resuscitated. They may even see dead relatives. Frequently, they find themselves floating in a cloudy void, where they begin to see visions of their lives and their role in the universe.