They found that psilocybin had produced statistically significant effects on nine kinds of experiences: (1) unity, including loss of sense of self, and a feeling of underlying oneness, (2) transcendence of time and space, (3) deeply felt positive mood, (4) a sense of sacredness, (5) a sense of gaining intuitive knowledge that felt deeply and authoritatively true, (6) paradoxicality, (7) difficulty describing what had happened, (8) transiency, with all returning to normal within a few hours, and (9) persisting positive changes in attitude and behavior.
