The ghost is Hamlet’s father (Prince Hamlet). He came and brought this message to his son as he wanted him to do right by his father by killing his uncle Claudius to avenge his death and remove him from the throne of being king. This is the Inciting incident because the rest of the play is essentially and primarily focused on Hamlet being faithful to his father by killing Claudius. The next few acts also show a different side of Hamlet to be more specific an unthinkable and dangerous side of him is unleashed. 

“His canon 'gainst self-slaughter! O God, God! How weary, stale, flat, and unprofitable Seem to me all the uses of this world! Fie on ’t, ah fie! 'Tis an unweeded garden That grows to seed. Things rank and gross in nature Possess it merely. That it should come to this.” (Act 1, Scene 2, line 135)

This quote shows Hamlet is not in the right state of mind by the way he is talking. Clearly Hamlet is in a place where he would rather be dead than alive right now knowing that his mother remarried his uncle which was a big shock for him, however, the death of his father has played a bigger role in his life. Hamlet's father meant a lot to him and knowing he will no longer be there causes him to feel so much anger, pain, emotion, etc, towards himself and others around him. 

“To be, or not to be: that is the question.” 

(Act 3, Scene 1. 56-90)

In this quote, Hamlet constantly thinking in his mind if he would rather continue to live the life he does or die/commit suicide to get away from it all surrounding the pain and anger he faces. Even with Hamlet thinking like this his mind is quite different from others as he eventually comes to the conclusion that it is better to live until he makes up his mind as he constantly questions himself and everything he does. The conflicts and emotional anger he faces are one of the main reasons that cause Hamlet to think this way. Furthermore, Hamlet also realizes he does not know the reality of death or what happens when you die.

“I am myself indifferent honest, but yet I could accuse me of such things that it were better my mother had not borne me.I am very proud, revengeful, ambitious, with more offences at my beck than I have thoughts to put them in, imagination to give them shape, or time to act them in. What should such fellows as I do crawling between earth and heaven? We are arrant knaves, all. Believe none of us. Go thy ways to a nunnery.” (Act 3, Scene 1, line 131).

In this quote Hamlet clearly describes himself as an unpleasant person “proud, revengeful, ambitious,” which goes to show that Hamlet does not see any good in him nor does he think good of himself in terms of what he is saying. Everything said in the quote provides insight that Hamlet’s thoughts and his mind played a role in his own downfall. In addition, he tells Ophelia “Go thy ways to a nunnery.” He essentially tells her by doing this she won’t give birth to a child like himself and who thinks and acts like him. It is hard for Hamlet to show the same affection and love to Ophelia due to his mind being focused on greater things such as killing Claudius. 

“Thou wretched, rash, intruding fool, farewell. I took thee for thy better. Take thy fortune. Thou find’st to be too busy is some danger. Leave wringing of your hands. Peace. Sit you down And let me wring your heart.” (Act 3, Scene 4, line 35).

This quote was essentially one of the biggest turning points in the story as killing Polonius caused negative conflicts to occur for Hamlet. Once Claudius had heard what Hamlet did he sent him to England for the main purpose of killing him by devising a plan with Laertes. Although Hamlet did not mean to kill Polonius as he thought it was Claudius his anger and emotion shows a horrific level of madness. This quote also shows that Hamlet plays a role in his own downfall because if he did not kill Polonius none of this would have happened nor would he be sent to England to be killed. His actions and judgment are unthinkable at times causing him to get involved in these dangerous conflicts with people with more power and authority than him.

(Act 1, Scene 4. 86-91)

In this case, the ghost is Hamlet’s fate. This relates back to the theme as Hamlet has no control in this situation as the ghost has the power. By Hamlet's Free will he asks that both Horatio and Marcellus let go of him to approach the ghost and find out who it is and what it wants from him. 

Guildenstern’s statement relates to the theme as with free will an individual can be happy and lucky, however, fate will decide how happy you can be and how much luck you can really have. 

(Act 3, Scene 1. 56-90)

In this quote, Hamlet is basically saying to live or to die. In this case, Hamlet asks himself whether or not he should make the decision upon his own free will to die/commit suicide as he feels as though death would allow him to lose that pain he’s been holding in. However, in the quote, he comes to a realization that no one truly knows what comes after death. Furthermore, he waits on this decision which relates back to fate as Hamlet would rather have fate do the unexpected to him than make the decision himself.

(Act 4, Scene 4. 58-65)

The first part of the quote relates to fate as seeing the death of thousands of men and dealing with the death of his father is ultimately out of Hamlet's control. The second part relates to free will as Hamlet essentially said that with his own control if his thoughts aren’t always surrounded by the violence they are worthless to him.

(Act 5, Scene 2. 205-210)

Hamlet is essentially saying that he is not the one nor does he or anyone else have the power to control there own fate or free will. In addition, It is clear in his statement that he believes everything happens for a reason and that free will can not change his fate due to him killing Claudius Hamlet knows God is truly the man who controls everything and that with time everyone including himself will soon die regardless if you are prepared or not.