Humans almost find it necessary to put a label on something that can’t be explained.
You see/hear weird things at night that are out of place and can’t be explained, ghosts.
You see/hear weird things in the sky that you can’t explain, aliens.
You see/hear things that you can’t explain at all, God.
Yet out of all three things I listed there is no public record or public proof that either one even exists at all. Just a bunch of stories driven by fear, emotion, and the unexplained.