Below are the best resources we could find featuring rick strassman about comparing belief traditions.
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Current models for the spiritual properties of the psychedelic drug state emphasize the bottom up neurotheological paradigm.
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Here he describes how he was an active Buddhist meditator for twenty years while he was also engaged in DMT research. Eventually he left Buddhist practice, and began a deep study of the Hebrew Bible. Initially, he thought that the DMT "spirit molecule" might be responsible for spiritual experiences.