AbstractThe present research study investigated the phenomenon of recreational use of psychedelics at music festivals, analysing whether the resulting experiences could possibly be recognized as valuable in terms of preventive mental health strategies. Quantitative (online survey) and qualitative (interviews) research methods have been combined to illuminate 3 main topics: motivation for the setting choice; the nature of the resulting experiences & their influence on people's lives; learnings from psychedelic experiences at music festivals (PEMF).Among other findings, motivation evolved around fun, enhancing the sensory exploration of the world, and deepening the connection to its diverse parts through engagement with art, nature and other beings. Factors, distinguishing music festivals from other settings, were significant for the setting choice (non-controllability of the environment, community & connection aspect, diversity & richness of the surroundings, pharmacological specifics). Remarkably, the non-controllability of the environment, otherwise avoided in the psychedelic research, contributed to the life-changing effects of PEMF. Exploration of their nature showed that, mostly rooted in poly-drug use, the enjoyable were clearly dominating over the challenging ones. The mystical PEMF appeared to be surprisingly common. Participants shared the related life-changing effects, centred around changed perception (increased empathy, awareness, acceptance; new perspectives, etc.) and changed behaviours (increased mindfulness in all life areas; making different life choices; changed approach to relationships, etc.). Except for post MDMA recovery, a positive impact of PEMF on mental health and the emotional state of the participants was reported, referring to increased levels of happiness, compassion, awe, trust and to emotional balance. This study showed the potential value of PEMF in terms of preventive mental health strategies in various forms. Acknowledging these findings as well as the existence of potential risks for triggering psychiatric conditions, de-stigmatization of recreational use could help introduce meaningful changes, including substance testing availability, prioritization of education as well as mandatory welfare and harm reduction services on-site.