O villain, villain, smiling, damnèd villain!
The King may show his smile but you best know his true intentions. The King tells Hamlet that he must go and make retributions for his father's actions. The ghost of the King reminds me of the Holy Spirit in a sense that he is watching over Hamlet and guiding him.
A serpent stung me. So the whole ear of Denmark
The old King of Denmark had evil intentions. None knew of the acts he had done to take the thrown. Now that Hamlet has learned of how his father died, he should act on it to make things right.
Doomed for a certain term to walk the night
The King has been condemned to walk only at night. During the day he is punished to a hellish place for the actions he made in the past.
Do not, my lord.
Horatio tries to tell Hamlet not to leave with the ghost. Hamlet seems to have an intuition towards the ghost and understands his intentions. I feel that Hamlet will be inspired by what the ghost tells him
The pith and marrow of our attribute.
People are born into their societal class; they don't get to choose where they are placed. You cannot blame a man for being in the situation he was born into.
A flourish of trumpets and two pieces goes off.
Why is there such an amazing entrance for the King? It seems he has been condemned and is not in a good place
Costly thy habit as thy purse can buy,
He gets advice as such "Don't be too kind to people off the bat, take advice and criticism from everyone but don't criticize others, and keep good friends as close as possible.
Show me the steep and thorny way to heaven,
Laertes is speaking to Ophelia and Ophelia tells him how Polonius speaks on the hard and correct route to heaven but he himself is taking the primrose path
Grows wide withal
In this part of the story, Laertes speaks to Ophelia and tells her how the mind and the soul grow with the body. This sticks out to me because it seems to reference a higher understanding from Laertes and that he has great knowledge.