I've always sort of intuitively done this since I was a kid (https://zchry.org/words/questioning-my-quantum-leap-an-ongoi...). I have zero experience with meditation in the traditional sense but I'm really interested in going down that path next as I try to broaden my scope.
I used to play a game as a kid where I'd close my eyes and try not to see or imagine anything. To keep a black empty universe as the only thing I see, for as long as possible. It isn't easy!
I did the same as a kid. Like if I was in a classroom with noisy classmates ("study hall") I'd shut my eyes and actively try to not hear them and embrace the nothingness "around" the voices. Kinda interesting that I have distinct memories of doing this _years_ before I was ever exposed to "meditation".
IMO a lot of stuff humans have 'invented' (like meditation) are really just sort of tied to our nature as animals. I think meditation is something we're all (most?) inclined to try in some way, but then some specific geeks studied it really hard for thousands of years and turned it into what it is.
I have a similar thought experiment where I try to imagine the true essence of 'nothingness', down to even the removal of the 'idea' of nothingness and even the thought that I'm trying to imagine something. It's a weird feeling.
Oh, but I did check it out, spent 9 months doing nothing but yoga and meditation out in the forest; and there's definitely more in there just waiting to be activated.
Don't forget to gather up the world's leading neuroscientists and let them know that they're wrong because you 'checked it out' by doing nothing but yoga and meditation for nine months.