Dualism
In the philosophy of mind dualism means that the mind and the body are two very different things. Nothing that is part of the body can be part of the mind and nothing that is part of the mind can be part of the body. People like this sort of dualism because they think that the mind is too important or too strange to be part of the body. A contrasting idea is that the mind and body are the same thing or that mind is just another word for the brain. (See also René Descartes)