downside to being athiest is that when you die your next life will most likely be shitty, like an ant or tree.
Or, a single grain of sand--and guess just where you'll land? In the cat box once again, and again, and again, and again, and again, and again (ribbit, ribbit), and again, and again...
--
I've had a few weird experiences, so I'm pretty open. But, if it's real, it is man-made or natural (or aliens, but I'm lazy to make a meme pic), and if there's anything one should be certain of, it's that the universe still has more secrets for us to reveal and make use of. Supernatural, by the very two words it is composed of, is either use of technology, or requires faith in some mythos. IoW, if ghosts were real, and were dead people wandering around, Swayze-style, and some genius found a way to prove it, that would cause it to, after whatever chaos such a crazy thing would cause, to be added to the laundry list of known natural phenomenons.
However, quite a bit of what had historically been thought supernatural turned out to be really easy to understand stuff,
provided one also had a fair understanding of the physics/biology/whatever that underpinned the explanation. It just took people thinking to do things like make a bottle with a top too narrow for a bug to get inside, or to look at crap under a microscope, which didn't exist way back when, etc..
It's certain that the
experiences of the "supernatural" are very real, but they could be very real neural interactions, due to environmental factors, that will make everyone go, "oh...*facepalm*" if they get figured out, too. In some cases, that happens. Some places filter sound in ways that do weird things to us, FI,, and some natural materials can effectively record and play back things (there's actually a bar somewhere with walls that do that, IIRC). Disbelief of the occurrence at face value is, IMO, operating with a belief system just as much as a religious person is, though, and that that belief system is just as mentally limiting, though less dangerous to society, in large numbers.