This is inspired by the current cannabis discussion.
Any of you who have read Aldous Huxley's Doors of Perception will know what I'm talking about here. It is the idea that the brain, rather than being a creative force, is actually a biological machine which reduces the amount of information we are allowed to process in order that we can function properly as an animal. This is based on findings that the main effect of psychedelics is to restrict glucose to the brain (a similar thing happens to schizophrenics naturally), and also of course on Aldous Huxley's own experience with these substances. This seems to imply some higher source, a soul perhaps.
I have had psychedelic experiences in the past and I can vouch for the fact that there are certain things you can see whilst high on psychedelics that are just not apparent in every day life; such as the complete intricate complexity of all the ripplings in a river or pond where each motion is "separated" out fully, or the true ugliness of the human being creature (as if for that period of time you are beyond human and can look at your strange body in all it's civilised weirdness). The most poignant thing I can think of was looking at a spot I had. I could see right down "through" the skin almost to the very root of the problem, but when I looked at it the next day i couldn't see what I'd seen at all, just an ordinary, insignificant blemish. A friend of mine has theorised that human's have a sort of social persona/aura which masks their true appearance, even to themselves, perhaps based on hormones.
Now maybe you're thinking "this is just because you're mind is being fucked up", but that simply isn't a good enough explanation for it. It raises this whole other question of why that would happen. What is causing your mind to make up such perfectly real sights right in front of your seemingly sober enough (i.e. not incapacitated) mind?
I do not condone the social use of drugs anymore, but I've always had a fondness for this idea and would like your opinions on it.