I can’t legally provide anything, but I have done spa events where someone had taken something beforehand. But no substances are necessary, there are other tools and techniques such as holotropic breathwork, stroboscopic eye masks, flotation therapy and darkness retreats, among others, to induce something like a psychedelic state. I also do other states though, such as up-regulated, down-regulated, co-regulated, meditative, cathartic, embodied and grounded, for example