The “mystical journey” described in this article has long been available drug free and under carefully controlled conditions via biofeedback. The results of these sessions are very similar to those described by people who received psilocybin. In the rare circumstances when clients become uncomfortable in their altered states, a session can be terminated immediately.

Doreen E. McMahon
McLean, Va.

My experience cries for researchers to reconsider giving psilocybin to volunteers. I ate drug-containing mushrooms in 1978, and what started out as interesting sensory changes devolved into massive depression that mentally altered me for years.

Name Withheld

From the Nature Index

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