Prosocial correlates of transformative experience at secular multi-day mass gatherings

For millennia, humans have sought out experiences that dissolve, transcend, or change their sense of self. Such experiences are frequently associated with participation in mass gatherings such as festivals or pilgrimages, and are thought to be epistemically and personally transformative. By weakening the boundary between the self and others, such transformative experiences may lead to enduring changes in moral orientation, such as increased generosity and an expanded circle of moral regard (“moral expansion”). Here we investigated the nature of transformative experiences and their prosocial correlates at multi-day mass gatherings by studying participants before (n = 600), during (n = 1,217), 0-4 weeks after (n = 1,866), and 6 months after (n = 710) they attended a variety of secular, multi-day mass gatherings in the US and UK. Transformative experiences at mass gatherings were self-reported as common, increased over time, and characterized by increased feelings of social connectedness. We observed high levels of generosity at mass gatherings, but generosity onsite was unrelated to transformative experience and did not increase over time. Meanwhile, participants’ moral circle expanded with every passing day spent at mass gatherings, an effect mediated by transformative experience and social connectedness. Immediately and six months following event attendance, self-reported transformative experience persisted and predicted both generosity and moral expansion. The nature of transformative experience and its prosocial correlates did not depend on whether event norms were communal or market-based. These findings characterize the psychological nature of transformative experience at secular mass gatherings and highlight how these experiences may be associated with lasting changes in moral orientation.