Meditation two, Descartes focus again on certainty, thru ontology and metaphysical tools. By means of these branches, he rationalizes the idea of certainty and existence. Nonetheless, he knows that God is deceiving, for he might not even inhabit space, furthermore he can’t trust the senses since the senses are also deceiving him for he doesn’t have any of the physical attributes to sense. Yet he is aware of his existence, although he is not sure of his entity. He is not sure of where does he descent. He uses the only tools that knows to discover himself, for what he knows, that he senses but he is not sure that he is even a human being, a man, or an animal. However, he would need to inquire about the meaning of those things. (Descartes
