If wine isn't a psychedelic how come that God/Jesus/Holy moly spirit dude made shit like these mountain ranges in Alaska?!
On a more serious note the archetypes present in the psychedelic trip come from within nature itself and within our minds and the things we see from day to day, psychedelic by very definition is meant to mean 'mind-manifesting' and those patterns we see can be seen and thought up without their use.
Besides it really depends what we're using to define "psychedelic" - here at Bluelight we usually classify weed separately to hallucinogens because it takes a whole lot of it to get even the mildest psychedelic/dissociative like effects, then typically hallucinogens are split further into Psychedelics (5HT2a agonists and related, a few exceptions here and there like 2C-I, 2C-B, 2C-D and 2C-H which are only partial agonists at 2A or even full antagonists, and seem to exert their effects through the other 5HT subtypes being agonised), Dissociatives (Primarily NMDA antagonists, but some there are some drugs I'd also group with them that exert their action in another manner, like Salvia Divinorum which is a k-opioid antagonist), and Deliriants, (which to be honest can pretty much be a term used to describe any drug that interacts with acetylcholine or dopamine in excessive amounts, but usually refers to the anti-cholinergics and anti-histamines in larger doses).
Some people prefer to use the term more broadly and just go with its linguistic definition which as I said earlier means "mind manifesting", which could extend to all hallucinogens, cannabinoids, and depending on how broad your definition of mind-manifesting is, almost any psychoactive drug known to man (which is why I prefer the earlier definitions).
What that means though is sure I don't see weed as a psychedelic but that doesn't mean you can't see visuals on higher doses (I've only seen open eyed visuals with cannabis maybe once or twice in > 1000x smoking, but CEVs are normal, and often similar to psychedelic CEVs, albeit milder).
Also I've seen psychedelic type visuals during deep meditation, and as mentioned earlier these types of imagery are everywhere in nature, we just don't tend to notice them and they become ever more apparent when one goes out for a walk in the woods while tripping, fractals errywhere! :D
Furthermore, these kind of patterns and art can come from experimenting with math and geometry too, and we all know that the Arabic speaking countries and India had some of the finest mathematicians back in the day.
It's really something that we're just going to have to assume came from multiple sources, I'm sure some art came from spiritual experiences, meditation etc, while others were imitations of previous pieces, some may have just been pure creative spark, some may have come from a few tokes on some nice hash, and hell maybe there was some consumption of N,N-DMT plant mixtures and/or psilocybin mushrooms to thank for some of it.
