The dead people I'm talking about had no heart beat and in some cases no reported EEG readings either. Then how were they able to observe their REAL surroundings, that were later verified? Surely there must be a consciousness operating there.
I don't want to get into a serious, prolonged discussion here, but I agree with this. As James and a couple of others have pointed out, it's impossible to conceive things beyond our understanding and perception (and there's much more of that than what we do know collectively), let alone say with absolute authority as to what is possible or where to draw the line.
Something supernatural happened to me IRL 3 years ago, that changed everything for me, but it was like Jodie Foster's trip in the movie 'Contact' - something I experienced personally and solely, which was physical/physiological and not just psychological. But I have no proof of what happened or even fully know about it, although my behaviour noticeably changed for the few weeks that bracketed the whole incident, which was itself of a prolonged duration (~ 3 months). I'm sure there's tons of people here who'd dismiss such a claim without hesitation, simply because it doesn't fit into their understanding of reality or has been categorized as such and such phenomenon by 'Scientists'.
My point is that there are unusual things and happenings that a handful of people experience, which never happens to the majority and which is not easy or even possible to explain. Depending on the person, these things can be categorized as anything ranging from delusion to full-blown religious experience. While a lot of it is definitely in the imagination of the person claiming such an experience, not all of it made up or bullshit.