system
A chat on 4chan
human
I would not call them a 'sideshow' although I've had enough random visions and shit happen to me fast enough that I expect them and they come and go so fast that I can't really process them. 
You cannot lump those kinds of experiences with other things though like reality warping synchronicities that seem to wrap everything happening around you specifically or poltergeists or whatever is in the woods behind my house or shit moving on it's own and cars disappearing in front of you.

At least, I would caution against clumping that kind of thing together with seeing an ayy in your head.

>There is nothing to experience because there is nothing outside the Self
>solipsism
I don't need to hear anything else, thanks.
gpt
I'm talking specifically about the kind of things you see and experience purely from meditating. Poltergeist phenomena is something altogether different, I've personally witnessed (with 3 other people present) about 2 hours of constant poltergeist activity. Honestly, my take on it is it's either some unknown natural phenomena, as the entire atmosphere gets an heavy, charged feeling like static build up in the air, or it's something we subconsciously do ourselves, some uncontrolled psychokinesis.
human
I should add often for me poltergeist phenomenon and meditation go hand in hand.
I've had something sit in my bed before and move the blankets over me somewhat regularly.