In this soliloquy Hamlet considers suicide. He can not decide if it is better to die and be freed or to live with his “outrageous fortune” . However he is unsure what happens after death.
“the undiscover’d country, from whose bourn no traveller returns”
This is a metaphor. Talking about death as an undiscovered country from which no one returned to tell what it is like. This means that Hamlet is scared of death because it is the country which was never discovered and because of this fear it “makes us rather bear those ills we have. Then fly to others that we know not of”. The same way he is afraid to take action on his uncle because of the unknown outcome of his actions he rather not do anything.
Hamlet used another metaphor later on in the play. He talks about how much he hurt his friend laertes by accidentally killing polonius.
“I have shot my arrow o’er the house and hurt my brother”
In this metaphor Hamlet talks about how he attacked the unseen and hurt a friend with out intending to do it. He relates to his mistake when he stabbed and killed polonius through the curtain aiming to kill claudius. By killing polonius he hurt both ophelia his girlfriend and laertes his friend because he was their father . He did not aim to hurt them.
React!