Symbols are objects, characters, figures, and colors used to represent abstract ideas or concepts.
In Hamlet, physical objects are rarely used to represent thematic ideas. One important exception is Yorick’s skull, which Hamlet discovers in the graveyard in the first scene of Act V. As Hamlet speaks to the skull and about the skull of the king’s former jester, he fixates on death’s inevitability and the disintegration of the body. He urges the skull to “get you to my lady’s chamber, and tell her, let her paint an inch thick, to this favor she must come”—no one can avoid death (V.i.178–179). He traces the skull’s mouth and says, “Here hung those lips that I have kissed I know not how oft,” indicating his fascination with the physical consequences of death (V.i.174–175). This latter idea is an important motif throughout the play, as Hamlet frequently makes comments referring to every human body’s eventual decay, noting that Polonius will be eaten by worms, that even kings are eaten by worms, and that dust from the decayed body of Alexander the Great might be used to stop a hole in a beer barrel.