I have a friend who studied with some South American shamans and has a lot of experience "babysitting". From what I have experienced (which is not vast) with consumption of a drug, the whole process is important. Intention, growing, harvesting, processing and so on. Unfortunately she is the only one I have met that I would trust and she is far away now.
Printed copy · Anthology Volume 9, page 1193Printed copy from The Tender For Law Anthology, Volume 9, page 1193 (printed 13 June 2014). Added by this site; not part of the Facebook export.