You may have at some point observed a cat that will walk up to a completely blank wall or corner and stare intently, meowing regularly. Cat experts will tell you that this is because cats have much more finely tuned senses of hearing, smell, and sight than we do, and they must be picking up one of these cues that are imperceptible to us oafish humans. They are wrong.
The cat is talking to ghosts.
Let me be clear: I don't believe in ghosts. I believe that cats believe in ghosts. My reasoning? Cats are idiots. If you need proof to back that up, get a cat. Cats also believe in homeopathy, healing crystals, clairvoyance, MLM schemes, alien abductions, and the Illuminati. Recent surveys have shown that anywhere from 65 to 75 percent of Scientologists are cats.
It's a common belief among people who do believe in ghosts that cats are especially sensitive to the spirit world and can see ghosts sometimes when people can't, because, I don't know, cats, witches, druids, paganism, something. I don't know if these people have thought through the ramifications for the afterlife if this is true. Imagine you have died leaving unfinished business, and your soul can't depart this world until you get justice for your murder or tell your family you love them or whatever. So the powers that be allow you to come back to try to set things right, and then you find out you are one of those ghosts that can be seen only by cats.