Plato's philosophy asserts two realms: the physical realm (material, changing, and imperfect) and the spiritual realm, also known as the World of Forms
Plato's Theory of Forms states that the physical realm is a shadow of the true reality found in the Realm of Forms
Art as Imitation theory by Plato suggests that art is a mere copy of life, a collection of "mere appearances," with the physical world being an imperfect copy of the unchanging world of forms
Representation theory addresses the issue of art imitating unknown objects by claiming that artworks "represent" something without having to imitate it directly
Art as Disinterested Judgment theory by Kant posits that the beauty of art can only be appreciated when the viewer is "disinterested," deriving pleasure not based on desire, allowing for a universally valid measure of taste
Art as a Communication of Emotion theory suggests that art is an expression and response to our emotions, reflecting innermost thoughts through an aesthetic experience, making art a way of looking at life