After we have completed this inquiry, we will consider the idea of non-Cartesian dualism, a view to which we are more intellectually attracted than Cartesian dualism. What is Cartesian dualism? In general terms, it incorporates the following elements: there are two kinds of substances, each with its essential properties. One kind of substance is a body, and its essential properties include being spatial, extended, divisible into substantive parts, and movable. A second kind of substance is a soul