Please explain the differences, and the similarities?

By this i mean more then just "both are from the brain". I mean go in depth, even to the feelings you get. Example...NDE's people are almost always changed by their expierience, the sight you see, the feelings you have (bliss, loved), etc. Wild the people are not changed this way. What makes a NDE more profound then a WILD, what re the different brain activity's that goes on to make the feelings so different? WILD is waking up after so and so hours and going back to sleep after (30??) minutes with the music, which turns into an LD (hence wiLD). Also, explain why the brain tells us we are dead if we go passed this invisible line, or a life review, and why we always come back with the same message "love and light". Sorry, i don't know much about WILD to explain that, so to the WILD experts, the same thing goes for the WILDS.

Anyway the NDE vs WILD thing just recently made me curious for some reason...i normally don't like thinking about NDE, or death, or dreaming anymore.