In this study which is one of the great thinkers of Western Philosophy of Plato tried to explain their views about the soul. According to Plato, the world of ideas of the soul and the divine source, the earth has decreased. Ideas oriented mental aspect of the soul, the mind will wake up wake her instinctual aspect of direction and three aspects to be. Intellect, will, with the help of insticts are put to the dictate of the human soul, should the need to return to the original homeland. Plato, in the immortality of the soul, remember, eternity based on the knowledge and life of various metaphysical sense and tried to prove by evidence.