Why Does Descartes, in Meditation 1, Need the Dream Argument to Show That He Cannot Trust the Deliverance of His Senses If He Already Has Established That His Senses Sometimes Deceive Him?
Through the distinct style of writing in first person narrative, Descartes introduces radical skepticisms, proves the existence of God, distinguishes the soul from the body, and establishes levels of certainty in knowing the material world. With the Meditations intending to be a guide to exercising intellectual understanding and practice, there is a strong connection between the literary form and philosophical content, as one supplements the other.
So, he attempts to undermine this confidence in a number of successively stronger challenges to our justification in believing what our senses tell us.
Being reflection of Descartes vision of the world, the given work introduces a new philosophy which helps people to obtain some answers.
Cottingham, John, Robert Stoothoff, and Dugald Murdoch. Eds. and trans. The Philosophical Writings of Descartes (Cambridge University Press, 1984), vol. 2.
Francks, Richard. Descartes’ Meditations: A Reader’s Guide (New York: Continuum, 2008).