A crucial application of Plato’s views on the use of images in philosophy occurs through the use of the image relationship as an image for the relation of forms and particulars. The relation of a picture to the object it depicts, or that between a reflection and what it reflects, can be seen as analogous to the relation of a particular to the form in which it participates. Although the attack on the image model as analogous to the relation of forms and particulars in the Parmenides threatens to undermine any reliance on that model, this essay will present a case for reliance on the image model.
Dominick, Yancy Hughes, "Resembling Nothing: Image and Being in Plato" (2007). The Society for Ancient Greek Philosophy Newsletter. 314.