explains that he summarized his conclusions about and the soul in the earlier work
Discourse on the Method. In these
Meditations, he will answer the critics who have questioned his views: he will explain why the human soul has no essence besides “being a thinking thing” and why, if he can think of a God more perfect than himself, that God must exist. He dismisses atheists’ criticisms as irrelevant, as they underestimate God’s infiniteness and overestimate humans’ power. Next, he warns readers not to read this book unless they’re “able and willing to seriously meditate with [him].” Readers must follow reason alone, rather than their senses or their preconceived opinions. Finally, before criticizing Descartes’s arguments, they should read the
Objections and Replies that he published along with the
Meditations.