Abstract

First, I offer a solution to the metaphysical problem of the mind–body relation, drawing on the fact of its distinctness in kind. Secondly, I demonstrate how, contrary to what is denied, Descartes’ metaphysical commitments allow for the intellect's clear and distinct conception of the mind–body union. Central to my two-fold defence is a novel account of the metaphysics of Descartes’ Causal Principle: its neutrality, and the unanalysable, fundamental nature of causality. Without the presupposition, and uniqueness of the mind-body union there can be no mind-body interaction; this throws new light on current concerns in metaphysics and philosophy of mind.