I think it's the other way around, where synthetic hallucinogens can be fully purified and measured, but brews of naturally occurring hallucinogens depend on how saturated the plant ended up being that time.
But taking a natural brew in a temple or something has a different set and setting than taking a synthetic chemical like LSD. It's also closer to tradition, and promotes the idea that the drug trip is a religious or spiritual experience.
IOW I think the use of ayahuasca over LSD is mainly symbolic, but DMT (as used in ayahuasca) does have its differences (though I do not know them).
> I think it's the other way around, where synthetic hallucinogens can be fully purified and measured
My point was, with synthetics it's still caveat emptor. Natural products have that too - a measure of uncertainty - but without a possible profit motive and without intent to conceal possible incompetence. Woodstock + brown acid.
But taking a natural brew in a temple or something has a different set and setting than taking a synthetic chemical like LSD. It's also closer to tradition, and promotes the idea that the drug trip is a religious or spiritual experience.
IOW I think the use of ayahuasca over LSD is mainly symbolic, but DMT (as used in ayahuasca) does have its differences (though I do not know them).