Last Sunday I tried out meditation. I asked a relative, who is a meditation instructor, to explain what he does, and then I had a go.
I was just doing the opening part of that meditation which involved a certain visualisation and I immeditaely had some kind of hallucinatory/mystical experience, which I will not describe here. At the time i was quite euphoric about the thing. I noticed afterwards i became very credulous, I was reading a story with talking animals and such and I believed it was all true. I think i could have believed anything anyone said to me at that time. The following day I had a complete about turn and became obsessed with the thought that I could not know where or who the experience came from and that maybe it was something dangerous. So I repented of the whole thing and decided not to do meditation again. For several days I was in a kind of state of supernatural alert. During that period I noticed that much of my usual brain fog was gone and even though i was quite agitated i could concentrate better and also be more sociable. Also my handwriting, normally poor, was neater.
Immediately that the hallucination occurred i felt a buzzing in the top of my head. This slight pain continued on and off for several days. It reminded me of when i took lexapro some years ago, how i could feel the receptors changing/activating in my brain.
So I am thinking that probably i have a whole part of my brain which was dedicated to religion/mysticism/superstition, with lots of receptors, which has lain dormant since i stopped being religious, and which lit up like a christmas tree when i did the visualisation (I was really hoping that meditation would help me unlock my mind somehow, and so i guess i got what i was after :-/). The feeling of supernatural threat was very strong. I was waking up in the mornings with my guts all tied up in knots. So i have decided that it is better for me to stick with the brain fog and apathy...