Meth was not around much then. I would have known if they were smoking it. They would have shared. It was the pot. They probably had better pot than you or smoked more of it.
Maybe you went to University before 1968 when this was released? I'd guess the song was written before that too, given composition time, rehearsals, and gigs before the album was cut:
Listen to the lyrics, not much has changed. "Saw things in the winda heard things at the doe Her mouth was like a grindin' mill Her lips were cracked and sore Her skin was turnin' yella"
Geno
The desert is a true treasure for him who seeks refuge from men and the evil of men. In it is contentment In it is death and all you seek (Quoted from "The Bleeding of the Stone" Ibrahim Al-Koni)
