The answer to this question is...
Zeus
The setting is a house at midnight.
Answer: an observer who lacks a specific identity
Explanation: The speaker in "The Lady of Shalott" by Alfred, Lord Tennyson is an observer who lacks a specific identity.
Integral setting is when the action, character, or theme are influenced by the time and place, setting. Controlling setting controls characters. If you confine a character to a certain setting it defines the character. Characters, given these circumstances, in this time and place, behave in this way. I got this from some of my notes.