Thank God for drugs. Not that I use drugs. Or condone drug use. But thank God for drugs. Odds are if there's a song you like it was written on drugs. I'm not just talking about Smells like Teen Spirit but let's go back...way back. Beethoven 5? Drugs. You name it, odds are it was written when someone was high on something.
And, friends, it's not just music. It's everything. Great art, of any type requires heavy and constant drug use. You want a good example? Aerosmith. On-Drugs?: Pretty fair. Off-Drugs: Fuggin Horrible. Want to write a good novel? Follow the "teachings" of Oscar Wilde and go nuts on Absynth.
I'm not saying YOU should do drugs. I'm just saying that lots of really talented people were baked out of their gourds.