So, back in the day (i.e. yesterday or the 1960s or any time in-between) . . . what was your favourite song to listen to after you had puffed on pot or had consumed some other mind-stimulating substance (yes, alcohol qualifies)?

One of my faves for such occasions was Led Zeppelin’s What Is and What Should Never Be. It’s a pretty spacey song — one, I read, that Robert Plant performed at Massey Hall in Toronto last night, and commented to the audience about the herbal fragrances in the air, saying “You’re making me hungry up here,” according to a Toronto Sun report.

Here’s the song: