• The productive sender is the outer world, the external reality including our own body. The receiver is our deep self, the conscious ego, which then transforms the outer stimuli into a psychological experience.

    Albert Hofmann: The productive sender is the outer world, the external reality including our own body. The receiver is our deep self, the conscious ego, which then transforms the outer stimuli into a psychological experience.
    Interview with Stanislav Grof, www.maps.org. 1984.