The article begins with an inquiry on St. Thomas Aquinas' theological framework of God in the Summa Theologica, as seen through the lenses of Pseudo Dionysius and Proclus Lycaeus, in the Light of Plato's dialectical exploration of the One in the Parmenides. We proceed to the similarities and differences between St. Thomas Aquinas’ theology and Plato’s philosophy in terms of the means through which the soul ascends towards the highest vision. Ideas of thinkers such as Democritus, Aristotle, Iamblichus, Thomas Taylor, Friedrich Nietzsche and Martin Heidegger supported or provided counter arguments regarding these matters. The essay raises a significant question pertaining to the relationship between Plato’s thought with that of St. ...