Psilocybin and shamanism Metzner, R.. (2013). Entheogenic rituals, shamanism and green psychology. European Journal of Ecopsychology Brito, G. S. L.. (1994). Food of the Gods: The search for the original tree of knowledge. …
The ancient history of psilocybin Tyl, F., Palenicek, T., & Horacek, J.. (2014). Psilocybin – Summary of knowledge and new perspectives. European Neuropsychopharmacology Plain numerical DOI: 10.1016/j.euroneuro.2013.12.006 DOI URL directSciHub download G, W.. (1960). Psilocybin, …