By Chris Taylor
As America experiments with decriminalizing psilocybin, one scientist spreads the gospel of 'shrooms at festivals — and in 'Star Trek.'
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CLEAR ALL
Of all the things humans rely on plants for—sustenance, beauty, medicine, fragrance, flavor, fiber—surely the most curious is our use of them to change consciousness: to stimulate or calm, fiddle with or completely alter, the qualities of our mental experience.