As someone who had a life changing “born again” experience, I have been fascinated with the study of how the brain creates these spiritual experiences. NPR has an absolutely wonderful 5 part study entitled The Science of Spirituality.
From the site:
Is This Your Brain On God?
More than half of adult Americans report they have had a spiritual experience that changed their lives. Now, scientists from universities like Harvard, Pennsylvania and Johns Hopkins are using new technologies to analyze the brains of people who claim they have touched the spiritual — from Christians who speak in tongues to Buddhist monks to people who claim to have had near-death experiences. Hear what they have discovered in this controversial field, as the science of spirituality continues to evolve.
Also, while we’re on the subject, if you haven’t seen Andy Thomson’s American Atheist speech, I highly recommend it.