Apparently meditation puts your brain wave pattern into alpha AND beta mode at the same time. Which was thought to be impossible. Thing is, Cannabis does this too. It's the only thing that does. I think that's why they go so well together. Weed helped me start meditating. I found that even when I wasn't smoking I could get that sort of high feeling back if I lay down and relaxed.
Went from there and yeh.... Now I'm exploring my brain.
I can tell you, if I've never tried weed I would still be buying into the bullshit the government tells us. I'd be an anxious kid studying science to get a job I don't want because it was the image my parents and grandparents and teachers had of me. And I would just fit perfectly into that neat little image. I wouldn't be happy.
I am happy now and I enjoy thinking more freely. Like (I think it was) Alan Watts said "We can be free from any images people have of us".
And that's a very liberating thing.