Comment by IAmBroom
> He was friends with Marsilio Ficino, who taught his students to hallucinate by chewing laurel leaves while playing the lyre
Which doesn't work, according to a quick search. And I'd believe Google over some cusp-of-Renaissance whack, who was clearly more than a little bit off.
You can definitely become very lightheaded by inhaling a handful of freshly crushed laurel leaves.