Descartes' wax argumrent appears in the second chapter of his Meditations. Descartes watches the wax as it changes shape and melts when heated. According to Descartes we know wax by the properties perceived by the senses ('tangible properties'). However, the tactile properties are not essential to waxing. The spread is the essential feature of the wax. The spread of the wax is known through the mind itself, without the help of the senses. If so, the final conclusion is: The wax is known through the mind and not through the senses.
Descartes proposes the perception of place in space, the 'spread', as a feature that cannot be stripped of wax. The meaning of the experiment is not only for the wax, but for the material in general. (The experiment is similar to what we did to the self - the attempt to undo all the attributes, except those that cannot be undone).Expansion is not a tangible property (it can be discussed in the amulets of mathematics and geometry, in the mind only). This implies the claim that the senses are misleading, because they are not material to matter (this is different from the same claim in the first logic , where the argument was that the senses sometimes mislead me).
See also: Descartes' Dream Argument Explained
