Good point Javlin, but the only thing we have to be carefull about is that when people do have the "Near Death Experience" are they being truthfull or just making something up. Just like pictures being photoshoped, are what people seen being photoshoped into their minds by their own imagination.
The only true answer to all this will only come once we pass away, unless some 9 year old boy comes along and says "I see dead people"