The image in the quote "And the silken, sad, uncertain rustling of each purple curtain" evokes a sensory experience. The poet, Edgar Allan Poe, uses this vivid imagery to create an atmosphere of eerie suspense and melancholy. The words "silken," "sad," and "uncertain" contribute to the mood by suggesting a delicate, sorrowful, and mysterious feeling, enhancing the overall tone of the poem "The Raven."