It gets into alot of cool stuff in the books after. Alot of hikes into the desert with don juan seeking power spots and places of predilation. Plus of course mecalito and peyote to shift his awareness. I swear that he smoked salvia a few times in the series. They talk about hitting what they called little smoke and after he would hit that he would have wild hallucinations and it would permanately change the way he seen things.

I think the first book was written in 1962

I wish I could exlain it better. I still go back and read the books cause there is so much to learn and comprehend.