Pope uses repetition in this passage: "He hangs between; in doubt to act, or rest; In doubt to deem himself a god, or beast; In doubt his mind or body to prefer." the words "In doubt" are repeated at the beginning of each short phrase. This repetition emphasizes the fact that the character described is constantly in "doubt". The repetition also portrays the character described in between two situations: in doubt to act, or rest. Always two opposite situations divided by the word "doubt", like the option of having to take one of two roads but taking neither because of doubt. This generates the effect of being stagnant and paralyzed by doubt.
