I will tell you what is wrong with that question. It is indeed possible for someone claiming to have had a personal experience of God to have been deceived (or hallucinating, as you like to put it); and I am sure some of them in fact are. However,
you have no way of knowing whether they have been deceived or not. The only thing that
you can do is to try to obtain that experience for yourself. If you succeed, and find it sufficiently convincing, then you have obtained your proof; if you don’t, then you remain in the dark, and still do not know if
some of those people (at least) might be telling the truth.
I disagree. If we compare details of everyones supposed hallucination, and find some details that ‘match up’, and that could not have been encouraged (say by bible stories), then I think this would be compelling evidence that there was a little more than simple hallucination going on.
zerinus;3066361:
Let me try and illustrate my point with an example. Suppose I told you that I have a great uncle in Colorado who is 140 years old, and still going strong! I love to visit him occasionally, and chat with him about old times. You say to me: “What measures have you taken to make sure that you are not hallucinating those personal experiences of your great uncle?” My answer to that would be: “I suppose I could be hallucinating—anything is possible—but I don’t think that I am! Your skepticism, though understandable, is not going to destroy the reality of my uncle for me, whom I have known for many years, and with whom I have had many hours of enjoyable personal experience. I am going to continue to live my life based on that reality, regardless of whether you believe in him or not. I am not going to stop visiting him, for example, and continue to enjoy his company, just because you happen to be skeptical about his existence. Whether you choose to believe that he exists or not, is immaterial as far as I am concerned. If you want to believe that I am hallucinating, then so be it. We agree to disagree. We live and let live.”
I think you are forgetting that your Uncle’s existence could be independently verified by unbiased observers.
Religious experiences are not open to this kind of scrutiny, because there is little
reality associated with them. It is all personal feelings.
That is just the kind of situation that I find myself in with regard to your questioning about my belief in God.
I am questioning how you discern between a real internal experience (your belief in Yahweh) and an hallucination. You made up a story about a 140 year old relative to muddy the waters, but you have not succeeded. Your ancient relative is quite easy to prove or disprove - by independent observation.
I still would like to know how you tell the difference, when you know full well that your senses are not trustworthy.