Definition: An expericence of being, or believing oneself to be clinically dead then returning to life.
There are some stories from people that have personal experiences for near death experience of almost dying or (NDE). In the earliest days the account recorded from Plato's The Republic(10.614-10.621). Base on the story Plato the great philosopher had describes a mythical soldier, telling of his near-death experience about an afterlife and reincarnation.
Many beleived that NDE as the bridge from present life, to other life after death and cannot be explained by physiologogical or psychological causes. There are some people experienced NDE and clinically no vital signs of life.