Near Death Experiences

Day of wrath, that day of burning,
Seer and Sibyl speak concerning.
All the world to ashes turning.
-Tomasso di Celano, Dies Irae
A near death experience, from what I've heard, is caused by several brain malfunctions, the most significant of which being a malfunction in the visual cortex, hence the proverbial distant light, and the release of tremendous amounts of endorphines (the brain's natural morphine), hence the feeling of wellness and contentness. These malfunctions are caused by the megadeath of neurons in the brain. Makes sense, doesn't it? (I got that from a show about death on PBS, I think...)