Ask the mods. From what I know, they can be pretty disturbing depending on how bad the trip was.
That's really not the case unless you're stupid or you don't know what you're doing when you take a psychedelic. If you just look into what the trip is like and ask people who have done the kind of psychedelic you're interested in about their experiences, and you're mentally prepared for it, you'll be fine. Also it's usually a bad idea to take a psychedelic if there's something stressful or something that's got you down going on in your life. Like for example, if you're depressed over a recent breakup or something like that, that's a horrible time to take a psychedelic because that's something that will be on your mind a lot anyway, and when you're tripping, if a bad enough thought like that enters your mind, it's difficult to get it out and it can just become very stressful or depressing depending on what it's about. So basically, you just have to make sure you've got your sh*t together before tripping and you're all good. Also, it's never a good idea to fight the effects of a psychedelic, although, unless you're stupid about it and take too large of a dose, you most likely won't feel like you have to fight it. Anyway, I feel like I'm rambling now about how to have a good trip, so I'll move onto my hallucinations now.
So, I've only ever taken one tab of LSD, which is a fairly small dose, so my hallucinations weren't quite as intense as they could have been. During my first experience, my friends and I went out into this woodsy area. It was at night. I wasn't really seeing any crazy stuff for a while, but about an hour and a half to two hours after I had taken it, I did. We were crossing a bridge that went over a creek, and I looked up at all the trees that were growing on both sides of the creek. I could see bits of the night sky coming through the branches and leaves, and and the spaces where the sky came through formed this really intricate maze. Later, we were walking up a hill. You know how when you're walking up a hill you can see more and more of the ground on top of the hill as you get closer to the top? Well, to my eyes, it looked like I was walking on a flat surface, even though I knew I was on a hill, and it looked like I was walking toward a cliff since I couldn't see the surface of the hilltop. As I saw more of the hilltop, it looked like more land was slowly being added onto the edge of the cliff. A little later, while up there on this giant hill, FableFreak and I (yes, he was among us, though he wasn't tripping) split off from everyone else and found a place with a great view of the city below. About half of this view was obstructed by a tree though, on my right hand side. So, the view on the left side was pretty normal. I could see lights, buildings, the night sky, etc. I saw all the same stuff through the tree branches on the right side, but on that side, beyond the tree, it all looked like a flat, two dimensional backdrop perpendicular to the Earth's surface. And still, the view on the left remained normal and three dimensional.
During my second experience, I was at a rave in San Francisco for the first part of it. I'm sure you can imagine that there were some pretty crazy light shows going on. It's hard to describe what exactly it all looked like, but I just wasn't really sure where the light show ended and where my acid trip began. Later, after the rave, I got home and was walking around with a friend of mine. We came to this big open field and stopped by the dugout at a baseball diamond there to just sit down and hang out. As I was staring at the chain link fence in front of me, it started moving in waves, sort of what the ocean might look like if you had a bird's eye view of it. Later, we went out into the middle of the field and started playing some music (I brought my ipod and a set of speakers). This was probably the craziest hallucination I've had. When I closed my eyes, I could actually
see the music. We went through quite a few songs, but I can only remember exactly what I saw from three of them. They were all Led Zeppelin songs. When we listened to All My Love, most of the song looked partially like a wide stream of rainbow moving in waves, sort of like the chain link fence was earlier. There was some cool looking stuff in the background if that too, but I don't quite remember that as much. Then, if you check the song out
here, at about 2:55, the song just became draped in a
giant rainbow sheet. Then, when we listened to No Quarter, I saw these crazy fractal patterns everywhere, like what you might see through a kaleidoscope, but they moved in such a swirly motion a lot of the time. But when we listened to Stairway to Heaven, that was the most insane one of all. The visuals from the other two songs were probably more intense, but during this song, I could actually
see the stairway to heaven. It was on a black background, and I could see the outline of each step. These outlines were sort of like cracks in the black background that allowed me to see through to a big layer of rainbow behind it. As the song played, I actually started to climb the stairway in my mind.Once I reached the top, I felt like I was in my very own personal heaven. Everything that would make up my own personal heaven was there. I won't go into what that would entail because that would just be a never ending dive into my mind, but believe me when I say it was one of the most intense and amazing things I've ever experienced.
Hallucinations aren't the bulk of an LSD trip though. The mental aspects of it can often be much more intense. You're able to think much more clearly and quickly. I felt like my thoughts were racing a lot of the time, but my brain was actually able to keep up. I also thought that I might have been spouting a bunch of nonsense even though I felt a great deal of confidence in my own thoughts, but there were plenty of people around me who were stone cold sober, and they all said everything I was saying made perfect sense. Your perception of time and space can be skewed a little as well, though I suppose a skewed perception of space would be considered a hallucination. I don't know, it's all very difficult to describe because there's so much to it, and everyone will have a little bit of a different experience on psychedelics.