Part 1 of Essay
In his sixth meditation must return to the doubts he raised in his first meditation. In this last section of his sixth meditation he deals mainly with the mind-body problem; and he tries to prove whether material things exist with certainly. In this meditation he develops his Dualist argument; by making a distinction betwe ....

Part 2 of Essay
.... predictions, etc. which he calls our (sensory awareness) as these are part of the way we perceive the external world, he doubts at first that any of these internal experience holds any truth or existence. As he is very sceptical he raises the problem whether any of these given experiences contain truth or objectivity at all. Since we never have the chance to stand outside our own perception, it is impossible to contrast it with the external world. Descartes is hopeful to prove subsistence of the external world (p ....