This doctor's experience with a heavenly realm while in a coma for seven days is remarkable in many ways. Not only was he was under intense medical supervision the entire time he traveled outside his body, he is also a neurosurgeon who didn't believe in the afterlife. One of those physicians that believed all those stories were just a malfunction of the cortex. In his case, not only was his cortex malfunctioning - it was completely off. Not functioning at all!
We live in interesting times.