Scientists say our consciousness is the product of our brains, with purposes set by evolutionary fitness. Theologians believe our consciousness reflects the God who created it, with majestic purpose of eternal life. Mystics hold my consciousness is a drop in the ocean of cosmic consciousness, with cycles and return. For sure, consciousness is a test case.

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Stuart Hameroff, MD, is a physician and researcher at the University Medical Center at the University of Arizona.

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