Abstract

A ghost is a supernatural being that is typically described as capable of appearing to, speaking to, and even doing harm to a person. But it is also described as a being that you cannot touch or affect in the usual ways. Lots of things seem weird at first, but humans don't think of them as supernatural. It's easy to see how material things interact with each other. After all, they are, by their very essence as things filling space, things that cannot merge into each other. Descartes' view is not just a philosophical speculation; it is also a scientific hypothesis. Although Descartes' reasons for dualism are based primarily in deep philosophical meditation, his reason for identifying the pineal gland as the seat of the soul is based in his investigation of the human brain where Descartes finds an anatomical explanation for some obvious facts about human perception.