three small case reports:
i once babysat for a group of three friends as they smoked salvia on the beach. it was interesting, particularly as each user's objective reaction fit pretty neatly with who they were, as i knew them.
first guy smoked it, and just laughed as hard as he could for a few minutes.
second guy smoked it, went into his mind, muttered some incomprehensible stuff, then tried to get up, saying 'mom.' when I asked him about it, he said that he went to a pretty dark and hard to articulate place, and that at one point he saw his mom and was greatly concerned about her. they're close, and he never met his father.
third guy, who's a soykaf of an everything-addict (stole a guitar from above friend, stole drugs from me, all sorts of reprehensible addict behavior), immediatelly ran to the side then starting doing somersaults on the beach, while muttering incomprehensibly. when asked about it, he said he needed to use his head to push the world back into place.
i once did it and had an otherwise unremarkable/nothing-stuck experience, other than i felt the edges of my body as a myriad of blocklike molecules that exchanged blocks with the environment, namely, the blanket and the bed i had crawled into. i don't recall anything else from this trip, no psychological takeaway.
for the aforementioned shroomery thread, I had 15x extract (which is comparatively weak by extract terms). I also had a wonderful zong (z-shaped bong; RIP), which had an already large bowl, the concave line of which had broken, to make a very, very large bowl. i filled it to the brim and took it in one toke to the best of my ability (which was far greater then than now.)
i was hoping to break through and meet the green goddess i'd read about.
the first moments of the trip are a blur to me, but the rest of it stuck with me. I saw an infiinite expanse of tendrils radiating from a single central point, like dendrites around a neuron. each of these snaking rays was made up of individual blocks (not sure why that's a recurrent motif in my salvia experience) and each of these would, in turn, put forth one of these blocks to the central node.
i was one of the blocks on one of the tendrils. i could not perceive what happened to a block that reached the central node, but i was aware that it was happening, and that it would be my turn shortly.
when it was my turn, as soon as i was slotted into the central node, i immediately expanded to what i perceived to be an infinite size. there was a shift in consciousness that felt infinitely euphoric and completely beyond the scope of my ability to explain; it seemed to me to be the entirety of holisitc experience. i then immediately shrunk to what seemed to be an opposite, infinitely tiny size - ie, a singularity - while still retaining the qualities above. it was a very similar feeling, but not quite the same. presumably, inverted (though I'm sure being able to mine that experience would reveal far greater complexity than experessed here.)
I was then returned to normal size, and slotted along (presumably to another tendril, implying that there were some sort of anti-tendril).
the kicker: as this experience ended i began to slowly recede back to my surroundings, awash in an incomprehensible multisensory noise. when i had sobered up enough to be able to somewhat recognize who, what, and where i was, i realized that the image that was, in my minds eye, a very dense view of disneyland. very specifically printed on a postcard, with the title of the park printed on it. i have no idea why; i've been once as a kind and it really didn't appeal to me.