The ghost demands Hamlet to avenge his death from King Claudius immediately. With this demand, Hamlet completely shifts to an evil and senseless state of mind. .
In addition, the appearance of the ghost affects future moments of action from characters. The one who is the most effected by the ghost's demands is none other than Prince Hamlet. After given specific commands from the ghost, the continuous actions of Hamlet become threatening to not just the man he wishes to kill, but also to others within his presence. People who Hamlet has friendly interactions with turn out to be dead because Hamlet's sense to kill is completely unstoppable. For instance, Polonius becomes a victim of Hamlet's wrath simply because he is in the wrong place at the wrong time, "Dead for a ducat, dead!" (Act 3, Scene 4). Hamlet is speaking to his mother Gertrude before hearing a noise from behind a curtain. Without hesitation, Hamlet strikes his sword through the tapestry believing that this noise comes from the "rat", King Claudius. Hamlet's mentally unstable mind contemplates that the king is spying on him while he is speaking with his mother. The spirit of Hamlet's father causes him to feel inertly confused, thus leaving Hamlet to a struggle between morality and duty. According to a passage by Theodore Spencer, "he has grown, psychologically and philosophically, so that he can think of the problem more universally" (Spencer). As Hamlet continues to plan revenge on King Claudius, it is almost as if he changes his state of mind. At the beginning of the play, he believed in getting revenge for himself, but as the play continued, he thought about the affect it would have on the people of Denmark as well. The soliloquies by Hamlet often clarify his state of mind to the audience. The ghost triggered Hamlet to be uneven and hasty, but in his final soliloquy, Hamlet seems to be more logical.
