I was at a electronic musical festival in an old iron-ore mine and this was the last night, we were riding home that same night and my friend stayed sober cos he was going to do the driving. I started off by drinking a litre of wine, then I was given two Xanax which were quite mild and pleasant. During the last concert I met a dude who offered me some grass and also approximately half a bag of his homegrown shrooms (I have no idea what kind I'm sorry). When we all got in the car to go back home the shrooms had just started to kick in.
In the beginning I got a little nervous from the cars movement and it took me about 10min to negotiate this feeling and keep it under control, then I began twitching and moving around nervously in my seat because I was feeling like if I stayed on one spot for too long I would stick to the seat. Then the walls of the car started to gradually cave in, at first I thought that the car was shrinking and then I reasoned that I myself was growing, then I realised that these two developments were one and the same. I started to feel in a very profound way that the car was actually standing still and that the only thing moving was everything else. When I looked out the window the little sticks that lined the road (warning sticks with reflexes on them) began multiplying and I noticed that they sort of regressed all the way to the horizon, endless copies of the same object, during this time I felt that I too was one of these sticks, one in an infinite line of sticks.
The car trip took about 4 1/2 hours. During this whole time I had no idea my friends were in the car, or rather it was as if they were a part of the inside of the car and as if their voices were merged with the sound of the car. When we started to get close to home and the shrooms began wearing off I began understanding them which was a comfort. When I got home and they let me off I realised that I had dropped my keys at the festival and all comfort faded. I had to break into my own house through the cellar window, all the while worrying whether the neighbours would see me and call the cops. It all worked out in the end though and I'm definitely going to do more, I'm seriously considering buying some this week actually.