Psilocybin-occasioned mystical-type experience in combination with meditation and other spiritual practices produces enduring positive changes in psychological functioning and in trait measures of prosocial attitudes and behaviors. - Griffiths RR; Johnson MW; Richards WA; Richards BD; Jesse R; MacLean KA; Barrett FS; Cosimano MP; Klinedinst MA (Journal of psychopharmacology (Oxford, England), 2018)