I think the only thing in your OP that I might nuance a bit:
Celifrog wrote:
Why has no one ever truly come back from the dead to say that everything is okay on the otherside of life and death?
The idea seems to be that if someone claims to have had an NDE then by definition they weren't truly/deeply dead because they were revived, and also because these aren't true/deep death NDE's are written off by most that like to consider themselves science-minded. It's a more complex situation and one where it's best to read the literature to flesh out for oneself what the circumstances that surround these events would suggest.
A couple of the key problems for people trying to discuss these calmly - the claims made by both experiencers and doctors generally don't conform to reductive materialist expectations. To make the results more annoying no one exactly sees the same things. As you can imagine due to that blend there's quite a heated debate between people who on one hand would suggest that these are just bits of neurological activity either toward death or recovering from a near brush and the mystical/'supernatural' circumstances around revenants and their experiences are just wishful thinking or minds jumping to emotional/needful conclusions on one hand and others who'd suggest that such dismissal doesn't follow considering the number, quantity, and quality in some cases, of these experiences (including situations where it's claimed that a patient who was clinically 'dead' for a few minutes knew things they couldn't have possibly known not just about the room at the time of their death of things happening in other locations) and that we may be clutching reductive-materialism a bit harder than is warranted.
Even going on the brighter side of that literature though - not much meaning is added. I think most of our pain here is attempting to deal with copious amount of suffering, mounted on top of us and rather than strengthening us guaranteeing to eviscerate our health, and no sign that it has any meaning. NDE's seem to suggest - again if taken at face value - that there's a sort of Bardo as the Buddhists would put it, but that's nothing like a Christian or Muslim heaven in that it's neither permanent nor a place of completion.
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The loneliest part of life: it's not just that no one is on your cloud, few can even see your cloud.