The human mind is a complicated thing. The reaction of the human mind to such stresses and abnormalities as may be induced during a coma should not be interpreted as actual post-death experience. The victim of the coma did not die. Nor have any of the various other ubnconscious persons claiming to have experienced a heavenly vacation. Their mental experiences during their trauma should be treated as dreams, that's all.
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OK, What about the one who was given 117 predictions before he was returned.
The predictions were documented and several years later 97 of them came true.
Was predicting the future a dream? That was documented and known by more
than one person.
.
No one ever successfully predicted anything except by luck or logical inference.