Dr. Maurice Rawlings, MD, a heart surgeon, has written about the true events of some patients being resuscitated on the operating table and they speak about just having come back from hell.
These experiences are common in dying or severely damaged (coma) people, and they are interpreted by the person according to their religion. Doesn't matter what the religion is. It only proves that these experiences happen, not what they are about, as that is open to interpretations.