Most Shakespeare poems feature metaphors and similes. In “Sonnet 73,” Shakespeare focuses on metaphors instead of similes. Metaphors create a direct comparison between two things, creating a stronger contrast than a simile, which indirectly compares two things. Shakespeare creates this strong, direct connection to emphasize and dramatize the image of old age. The metaphors allow Shakespeare to attach emotion to his subject matter. Metaphors, which are comprised of images, are much easier for readers to relate to than simply explaining feelings because images create connotations in readers’ minds with sensory details and experiences.

This poem uses three metaphors for old age: the changing of seasons; the ending of the day; and the burning out of a flame. One interesting concept here is how these three metaphors work together to form one connected metaphor with time. The three images all depict different amounts of time: Seasons relate to the passing of time throughout the year; twilight relates to the passing of time throughout the day; and the flame relates to the passing of time within a moment. As the poem progresses, notice how each metaphor depicts a shorter amount of time, relating to the idea that as one ages, time seems to move faster.