Scholars have noted the Neoplatonic nature of some of Joseph Smith’s revelations. The beginning of D&C 88 (The Olive Leaf) sounds particularly so. In fact, it has numerous striking similarities to Plato’s description of the Good from his allegory of the cave. The following is Thomas Taylor’s 1804 translation of the Republic 571b-c. Like DC 88:6-13, it mentions ascent and says that the Good (like Christ) is the source of light, the light of the sun, and of human understanding.
If you compare this region … to the soul’s ascent into the intelligible place; you will apprehend my meaning…. In the intelligible place, the idea of the good is the last object of vision, and is scarcely to be seen; but if it be seen, we must collect by reasoning that it is the cause to all of everything right and beautiful, generating in the visible place, light, and its lord the sun; and in the intelligible place, it is itself the lord, producing truth and intellect.
In my dissertation, I argue that Smith seemed aware of Plato and may have used his Timaeus. The above quote suggests Smith may have been aware of Plato even earlier.
 The Works of Plato, viz. His Fifty-Five Dialogues, trans. Thomas Taylor, 5 vols (1804, reprint; AMS, 1979), 1:360-61.
 Stephen J. Fleming, “The Fulness of the Gospel: Christian Platonism and the Origins of Mormonism,” chapter 6. See here and the comments.
 Since I see Plato as rather Mormon, I quite like the idea. “Study it out” (DC 9:8) suggests such a process.