I find mushroom / psilacetin / DMT visuals to be pretty similar.
Of course it takes a lot of shrooms to get visuals like a 30-40mg DMT dose (smoked)!
But say, 15mg DMT in a pipe makes things look fairly similar to, say, 10mg psilacetin to me. Doses may vary... but assuming you trip equally hard on both substances, the visuals are very similar to me.
However, since DMT has such a rapid onset, rush, and strong vibrating buzz, DMT visuals tend to act more quickly and be a bit more flashy. Psilacetin comes on slow, relaxes the user (in my experience and others I know) and therefore the visuals seem more relaxed -- they come at you at a pace that is very easy to accept and absorb.
To me this is a huge advantage, and one reason I consider both psilacetin and mushrooms to be better psychedelics than DMT.
In fact, sitting in a car peaking on 10mg of psilacetin with the rain falling on the windsheild was a beautiful relaxing experience. When a car drove by it looked like somebody took a paint bucket full of light and tossed it over my surroundings.
Walking along an empty dirt road at night, surrounded by large trees, I certainly felt a strong connectedness to everything around me. It reminded me very much of mushrooms, but I felt clearer headed for the level of trip I was experiencing. The occasional house did indeed look otherworldly, and the world around me took on the look and feel of something out of a fairy tale.
Quite magical stuff, I'd say. I consider myself very lucky to have had the opportunity to try this one.
For me, DMT, LSD, mushrooms, and psilacetin all have fantastic visuals... and unless I'm forgetting something, these are the best I've tried visually. However, DMT is almost useless for me because it comes on too quickly, grabs you by the balls, and its hard to integrate. LSD is too long for most occasions and is usually not a very "relaxing" experience. Great fun once in a while, but certainly not "all purpose". Mushrooms are fantastic, but leave my stomach feeling like shit half the time and are hard to dose accurately with.
That leaves psilacetin as my favorite all time psychedelic! To me it's equal to shrooms but you can dose it *exactly* and there are no significant negative physical side effects on me and the few people I know who've also tried it.
proceed with caution. And stock up while you still can! I'm certainly not holding my breath for anything better than *this* to come along any time soon
