Whats the essay about? And how long
Answer:
He feels worthless and dehumanized. He feels like his life is not worth living.
Explanation:
He no longer has any way to move about as he did before and he is in pain. He does die.
You could write this from two perspectives:
He is insane and his mind drove him to believe he is a bug.
He honestly had a physical change and therefore he dies since he feels he cannot do anything anymore and he cannot work to take care of his family.
He's obsessed with the old man's eye.
Answer: To set store by (something), to hold (someone) in esteem; to consider to have value, to respect. with respect to; concerning.