They don't manifest in your real life. You can't really speak for the real lives of others.
OK, I put it to you -- where in the hundreds of years of modern science has there been a single metaphysical event that has passed scientific muster?
One. Just one.
Spiritual matters are notoriously anti-laboratory but that doesn't mean people don't experience them. Science, of course, cannot speak to every situation because it is an exclusionary discipline. It only looks at certain things and it only looks at those certain things in a certain way. But that is beside the point as I did not invoke science.
I only made the simple and obvious point that you have no idea what other people experience in their lives but you extrapolate your own experiences and demand everyone comply.
Has God ever been scientifically verified? Even once? Some people don't experience God in their lives and so they insist that everyone not experience God in their lives. You've never had a seemingly external encounter with a loved one who passed on so you insist that such things can't possibly happen but no matter how hard you insist that does not make it true. And it also has nothing to do with science.
Every system of knowledge is a system of exclusion. And the Universe, by and large, is not an intellectual exercise. And I don't know every experience that a human is capable of having so when someone tells me of an experience they have had, I listen respectfully and don't try to talk them out of it.
I've never seen a UFO and I don't really believe in them but I know people who have. I have never seen a ghost and never really want to but I know people who have. I've never had an out of body experience and yet it seems a very common component of the human experience catalog. By not telling people they can't experience what they have experienced or what they think they have experienced, I have made many good friends.
Can friendship be verified in a scientific lab? Is there even one study that proves the scientific existence of friendship? If not then friendship must not exist.