Written by Jim Morrison (The Doors)
http://archives.waiting-forthe-sun.net/Pages/Legacy/Albums/TheDoors/Songs/TheCrystalShip.html
But was it about drugs? Some debate about that, apparently.
Well, it was written by Jim (drugs) Morrison (drugs), it was the B side of Light My Fire (drugs) in 1967 (drugs) and performed by the Doors (drugs), but I guess you can make up your own mind about that.