>>928518My first experience with this stuff was in this "body mind and spirit" class back in HS. Every day before class started we had to take 15 seconds to "clear your mind" where you sat in your seat staring blankly at whatever, just attempting to not think of anything at all. Not about how many more seconds you had, not about where your eyes were looking, not about nothin.
Our teacher told us to try just doing it randomly every day and that eventually we'd get better at turning our thoughts to a standstill or at least filtering them out better.
I'd do it sometimes and after a few months I was like, "hey, I can actually spend 10 seconds of my life with a relatively blank mental slate" and it was pretty cool. No crossed legs or nothing.
In order to avoid college GER classes on Puerto Rican ghetto studies/Asian poverty general/African-American poetry/etc I took a few religion courses from cultures across the globe that were all really cool; it was all practical philosophical stuff, no dry review of doctrines or anything. Even a militant atheist would've come out of those classes happy they took it.
Course shilling aside, my Asian religion courses went deeper into the philosophies behind everything surrounding classic eastern meditation, so I can recommend reading stuff like the patanjali's yoga sutras and some other books (cba to recall atm) that help explain the contexts surrounding the weird meme-like yogi mannerisms.
It's all useful to read though it looks like blind religious shitposting without commentary or someone to explain it deeper, so looking up meditation from other sources without reading eastern mysticism is fine too.
There's not much of a need to position your fingers and hum "om" unless you're trying to transcend your mortal body or some shit (that stuff goes off onto the spiritual far end of meditating which we don't care about here)
More practical (and nonreligious) meditation stuffs is all over the Internet though. It's useful