Mostly, yes. If one looks into it, it's usually natural explanations or coincidence. The brain likes to make connections, even if two events are uncorrelated. Problem solving and puzzles happen to be what our brain is best at. People can convince themselves that something had to be paranormal, and once they are in that mindset, you're not really going to be able to convince them otherwise. Richard Feynman was said to like to tell an anecdote similar to the following.
I was sitting at home one day, when I got this just terrible feeling in the pit of my stomach. I knew, I just knew, that something was wrong. Then suddenly the phone rang, apprehensively I answered it. Nothing bad had happened.
The point of this being that there are plenty of times that one may have a bad feeling, but nothing comes of it. We don't remember those occasions, because the brain hadn't assigned any significance to it. However, if you feel bad and then something bad does happen, the brain says "Ahh HA! These two things are connected!" You're way more likely to remember something that was actually coincidental if you assign significance to it. But it doesn't mean it was anything other than coincidence because you'll never remember all those occasions when you thought something bad would happen and nothing bad happened, or you didn't know something bad would happen and something bad happens.
I think a lot of the "paranormal" and ghost stories comes down to things like this. Ascribed significance between uncorrelated events. And if you really take the time to look it through, there are generally natural explanations. And even if you come across something that you, for the life of you, cannot put reason to, it doesn't mean it was paranormal or magical or spiritual, or whatever. It just may be that you don't know.
I take all ghost stories with a grain of salt, and certainly anything from long ago is more story than fact. But if ghosts were real and what people said about them were, it seems to me that we'd have a bit more evidence for them by this point. There were something like 107 billion humans to have lived on Earth over the course of our species evolution. If even 1% of folk become ghosts, that's 1 billion ghosts floating about, and we don't really get anything other than stories. Right? There's no data, no measurement, no evidence, no proof. Just "I was at home alone and this totally creepy thing happened and a door opened so it had to be a ghost." sort of thing.