Final answer:
The narrator in the excerpt from "A Servant to Servants" is most likely experiencing despair, as evidenced by the contrasting emotions of envy and self-pity and the reference to feeling like a 'miserable nonentity.'
Step-by-step explanation:
The excerpt from "A Servant to Servants" suggests that the narrator is experiencing a sense of despair rather than joy, resignation, or contentment. This is evident from the narrator’s reflections on feeling envy for the host's possessions at one moment and self-pity in the next, revealing an underlying dissatisfaction with their own life and circumstances. Such a contrast in emotions, fluctuating between envy and self-pity, and the reference to considering oneself a 'miserable nonentity' strongly implies a sense of despair.