Just because you can ask a question, doesnt mean it deserves an answer. The whole notion of ghosts is rooted in religious thinking based on literally zero evidence. If a dish falls, or a chair moves, and its proven to be some odd energy force, you're still 100% away from a magic entity that is the spirit of a human that is traveling around the universe in tandem with the earth at millions of miles an hour, changing directions to match the rotation and revolution of the earth, the movement of our star, and solar system and local group and supercluster, etc. just to live in a house. if the soul has mass, we'd be able to measure it with a scale, which to date hasnt been done. It's not worth investing time and money researching peoples imaginary causes based on no evidence. someone from a primitive time jumped to the conclusion of a ghost for an unexplained phenomenon, and because of the widespread belief in immortal souls and an afterlife it's survived into the modern era, where in most every other area of thought those same people demand evidence. There is no place for magic or wizards as explanations, since to date every single thing that has been discovered has been found to be natural in origin. and that means also that everything that was attributed to supernatural agents, has been replaced by a natural explanation, or is still unexplained (yes, "magic did it" isnt actually explanatory)