>>21190411its kind of hard to say but "geometry" is kind of misleading
its more like fractals created in the corners of your mind that sometimes manifest in little indescribable swirls just outside of your vision yet you can still see them
but if you close your eyes you'll see visuals similar to what happens when you rub your eyes
on mushrooms they're much more vibrant and change colors
it looks like rainbow effects like this that i'm sure you've seen before, but i've never seen it with my eyes open on mushrooms