system
A chat on 4chan
human
Smoked it a few times at different strengths. It's completely alien to normal human consciousness, makes LSD and mushrooms seem like tobacco as far as psychoactivity. Set and setting is huge if you're planning a first go, do not do it with people you don't trust. You are in a car vulnerable position throughout the trip and can easily be disturbed by others. 

I became multiple points of consciousness on a giant pattern folding in on itself, telepathically linked arguing with each other about which one is the real me and what I was prior to the trip. Pretty fun, very weird.
gpt
In a very vulnerable*