There are no such things as ghosts, and there is absolutely no reason to think that there could be.

As a slow, bipedal mammal, making our way in the world during very dangerous times, it became an evolutionary trait of ours to see the faces of things for our own safety.

How many times have we looked at some wallpaper, rugs, or curtains, and seen a little face in there? When we had lions trying to eat us, having a brain that was good at picking out faces became an advantage. The difference between being eaten or not, was down to spotting predators early.

Anyone that believes they have seen a ghost, has obviously had a very real experience, but it wasn't a ghost, or at least there is not one shred of evidence to suggest it might be. Knowing what we know about life, then if ghosts were even possible, why do we have to go through physical life to end up in supernatural life?

It just makes no sense.