"An image not on canvas is merely an image, a figure of speech; poetic images are metaphors, tropes, inward forms. Psychologists did poetics a great disservice, when they interpreted inward form as primarily a visual image...a visual image hinders poetic perception...to strain oneself toward the visual perception of Puskin's 'monument built not with human hands' (nerukotvornyj) or of his 'flaming word,' indeed, of any image, any symbol, the forms of which are not visual, but fictitious, is to strain oneself toward the misunderstanding and misperception of poetic speech." - Gustav Spet