I can’t prove it, but I noticed in my last ceremony that the people wearing white clothing had gentler, positive experiences, but who knows?
I divide my time during ceremony either lying back propped up on pillows or sitting up fairly straight, in a meditation pose.But I get far more out of the experience when I set an intention.Beginners are advised to keep their intention simple the first time.(I rarely lie down flat except for stretching out my back — the visions just become to overwhelming.) As I can’t easily sit with my legs crossed for a long time, I find it very useful to bring along a yoga chair (there are versions used by hikers) that’s basically a legless item made from two pieces of nylon-encased foam, held together with straps.I bring a sleeping bag rather than blankets, and usually keep this unzipped like a duvet.(Now you see why not a lot of young people in South America are apprentice shamans…) Anyway, I practiced abstinence and had powerful visions my first time. I imagine one of the most neglected areas of preparation among people traveling from busy industrial society to ayahuasca retreat centres is the simple act of paying attention, by which I mean noticing () your mood, what’s around you, nature, and so on. You don’t have to think of it in those terms, if you don’t care to.