In terms of the typical psychedelics, it would have to be the 3 or 4 tabs of 25-I I took one day. They were fairly spaced out. I initially dropped one, I believe, and went out with some friends into this "tree-platform" this guy had. It began to storm. Rain coming down viciously hard, thunder, lightning, wind, etc. The whole time (until the lightning started to get close) we just sat there, getting rained on. They had all been with Molly to that point, so I was the only one tripping. The streaks of rain coming down all around me were just... wow. The lightning was pretty intense as well.
Later on that night, I had come down quite a bit, and we had changed venues, to another friends house. While there, I drop two more of the 25's. We chill for a bit, and then we head back to the initial place we were at. I rode in my friends truck, while he drove. Amazing, that's the only word for it. Even more crazy than eating five 4-HO-MiPT (spaced through the night). The entire sky was flashing (it wasn't storming anymore). Everything was flashing. The road was like some sort of two-lane snake, seeming to move all on its own. I would be watching it, and then a curve would suddenly appear out of nowhere, right in front of my face. I kept having to look behind me, because everything was flashing so intensely, and it occasionally gave off the illusion of blue lights behind us. I would see lights off through the woods we were passing by, but I wasn't even able to tell if they were actually there, or just created by my trippin' balls ass mind.
The funny thing is, I wasn't even trippin' that hard before we left. I mean, it was kinda "Oh shit, I feel crazy," but nothing particularly unusual. It was all getting into the truck that did it. As soon as we were in motion, everything just kinda went "BOOM!" and got really, really intense. Which makes sense, I suppose. I mean, think about the way things look in a car, even sober. Look out the side window, and everything is flying past and the like. As soon as I got out of the truck, I looked at dude and said something to the effect of, "Oh my god dude. There aren't even words for what just happened. WTF?" I suppose the gist of this is, everyone should trip as a passenger in a vehicle, at least once in life.
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The hardest I've ever tripped, however, came from a 40x extract of the atypical psychedelic Salvia. I'd had some prior experiences with the 10x and 20x, which were intense in their own right, but still sane enough to be enjoyable. The 40x is a whole different monster altogether.
I was chillin' with my boy D. He'd had a terrible experience on the 40x, while I'd loved the 20. He had a decent bong pack left of it, and was like, "Man. You can have the last of this. I want you to experience what I did. You'll hate it." I doubted this, though there was no doubt it was going to be crazy. So, I take a tiny little rip first, just to get my head ready. I get the general "Salvia feel." Some slight pulling, everything just gets kind of strange. By no means am I tripping though. So I walk over to the bong, and pack it up full of the 40x. I then go over, and crouch in front of his couch, then I hit it.
I take the whole hit, and hold it. As I'm holding it, I stand up, and sit down on the couch I was crouched in front of, knowing I'm gonna want to be sitting for this. Then I close my eyes. It felt like 5 seconds, and I swear it was. He says it was at least a full minute. Either way, when I open my eyes, the entire room is just fucked. That's the only way I can describe it. The couch I'm on has turned into a piano. While my eyes were shut, I'd moved from sitting to laying. Upon opening my eyes, I realize that I'm a piano key. It wasn't like "OMG, I feel like a piano key, wtf man?" No. My body WAS a piano key, on his (couch) piano. So, I rip myself off of the keyboard, and just start walking around looking at everything. Suddenly, his TV catches my eye.
We were watching this show called Tattoo Nightmares. On the show, there's this bald tattoo artist. Upon looking at the TV, he looks right at me and says "You're gonna be okay, we'll take care of you. You're gonna be okay, we'll take care of you. You're gonna be okay, we'll take care of you. You're gonna..." Over, and over again. I'm watching this unfold in front of me, and realize, "I'm tripping like I've never tripped before in my life." I wind up getting distracted by some other stuff, and when I look at the TV again, the screen was completely green, and there was this huge, white $ sign on it.
I then went and got some water, because my throat was feeling really weird. It's hard to explain, but it was as if half of my mouth was cheek. Like, rather than having a (near) symmetrical mouth, half of it just went over, leaving me with half of a mouth. While walking to get this water, I felt completely flat, like a piece of cardboard. It was like someone was moving me, beyond my control. I then went outside to get fresh air, because it seemed the right thing to do. After this, I was just stuck in a state of "I now have control of myself, but now I just feel really, really strange and unpleasant."
After it was all said and done, I asked D about the guy saying he'd take care of me. Apparently, the guy said it once, to someone on the show. But the screen showed him looking me dead in the eye, and repeating it over and over, clear as day. There was also apparently never any sort of huge dollar sign with a green background on his TV either.
My advice to anyone.. if you've never tried Salvia before, do low concentrations to get a feel for it. Because, until you've done it, you really have absolutely no clue just what you're getting yourself into. Not saying it's not worth trying.. it's just after that experience, I most definitely prefer my tryps and phenethyls.