William Shakespeare's play Hamlet talks about the internal turmoil of the eponymous protagonist, and his interior demons. The role of madness is employed to disguise facts and reveal hidden edges of the heroes. The world of other folks is to us, a world of appearance, and Hamlet is essentially, a play about the difficulty of surviving in such a world. A significant theme is that of uncertainty, that i shall claim is vital to your interpretating the play, as is the type of Ophelia. Hamlet..