I suspect we would have more reports of uncanny experiences from ordinary, rational people if it were not for the fear of being judged insane or at least unstable.
An alternative to the insanity explanation would be that such experiences do represent some sort of encounter. It was my scientific training, oddly enough, that eventually nudged me to consider this possibility. Sometime in middle age, when I had become a writer and amateur historian, I decided that the insanity explanation may have been a cop-out, that I could have seen something that morning in Lone Pine.
If mystical experiences represent some sort of an encounter, as they have commonly been described, is it possible to find out what they are encounters with? Science could continue to dismiss mystical experiences as mental phenomena, internal to ourselves, but the merest chance that they may represent some sort of contact or encounter justifies investigation. We need more data and more subjective accounts. But we also need a neuroscience bold enough to go beyond the observation that we are “wired” for transcendent experience; the real challenge is to figure out what happens when those wires connect. Is science ready to take on the search for the source of our most uncanny experiences?