Pink Floyd is stoner music.
That's why it got so big.
When I was in high school ('78 - '82), everyone that smoked pot also listened to Floyd. (drugs were kind of the by-line for the entire "progressive" rock genre, if I'm gonna be honest about it..)
Me going to see the movie The Wall with a few friends. Yeah. at a 70 millimeter cineplex in East Hartford, Ct., and we all dropped acid right before we went in to see it.
It was absolutely over the top. ..and amazing.