These lines are spoken by a captain who has been wounded in the war. He is relaying the information about Macbeth's brave fight against the enemy to King Duncan. He talks about how brave and valiant Macbeth was, so the audience can infer that he is a fierce warrior who will stop at nothing to ensure his win in a battle.
These lines say that the speaker is never going to give up on pursuing his beloved, however hard she rejects him. However, he doesn't seem to despair because of it. He almost thinks it is the world's natural order: while some were meant to love and pursue, others were meant to hate and reject. For him, each failure is only an impetus to keep trying. The fate's role in this situation is seen through expressions "while I am I, and you are you", and "must" - as if he can't help it but pursue her.
"The Jilting of Granny Weatherall" takes place at the deathbed of 'Granny' when she drifts in and out of consciousness as she prepares to die. She is thinking back on her younger life and its effect on her as she grew old.
The word “shock” is a concrete noun
