Final answer:
Figurative language in literature enhances the tone by conveying emotions and depth, as seen in Oscar Wilde's descriptions which create a somber tone.
Step-by-step explanation:
The use of figurative language in literary works helps to enhance the tone by giving depth and conveying emotions in a way that literal language cannot. For instance, in The Portrait of Dorian Gray by Oscar Wilde, the comparison of Dorian's sins to a corruptive force worse than death itself paints a vivid picture of internal decay and moral degradation. The image of sins marring the painted image on the canvas as worms do to a corpse develops a somber and reflective tone. Similarly, descriptions of settings in other texts use sensory details and metaphors to communicate feelings of disillusionment, antipathy, and detachment, creating an atmospheric tone that engages the reader.