Seeing 'God' may be caused by epilepsy:
http://www.dailymail.co.uk/sciencetech/article-3592694/Seeing-God-caused-brain-damage-Scans-taken-religious-experience-reveal-neurons-light-brush-devine.html
http://www.dailymail.co.uk/sciencetech/article-3592694/Seeing-God-caused-brain-damage-Scans-taken-religious-experience-reveal-neurons-light-brush-devine.html
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