That optical illusion gave me a hint of the original feeling. On my drug trips it was also highly correlated with a spinning or vibrating sensation, which also seems somewhat present in that illusion.
There's something really interesting here about this shared type of experience that many people are reporting. All a bit different, but a very similar feeling.
I feel like others online must have discussed this type of thing before, but I've also come up short when searching it. How do you even describe it or name it in such a way that is searchable? Has anyone come up with a name for it?
Now I kind of want to post this on Reddit or something to find more people with this experience, and maybe see if anyone has a name for it.
I've never done Salvia, but the descriptions I read about it from people remind me of this feeling as well. They often talk about a wheel and spinning movement and dread.