Answer: just use websites with .gov or .edu they are really trustworthy
Explanation:
Donne states that Death is not as scary or mighty as people often describe it to be. He is trying to diminish its significance by saying once people die, they go to Heaven and can rest there for eternity and then Death will have no power over them. He concludes the sonnet by saying "Death, thou shalt die" because it won't be able to kill them again.