I'm not sure I see a contradiction. This is compatible with the established idea that you can have transcendent insight without drugs, and with the equally-established idea of suggestion as one of the principal mechanisms behind placebo effects. A cohort was put in a situation that facilitated reflection upon life in a closed setting; that's exactly what I'm suggesting is helpful.
See also: "you're not anxious; you're distracted."
See also: "you're not anxious; you're distracted."