:Atmosphere and Setting: Usher's mansion and its gloomy, decaying surroundings deeply affect the narrator's state of mind. The eerie and melancholic atmosphere created by Usher's ancestral home mirrors the narrator's own mental and emotional state, making him more susceptible to Usher's influence.**
:Emotional State: Usher's deep-rooted melancholy and obsession with the concept of "the house of Usher" infect the narrator. Their emotional states become intertwined, and the narrator finds himself gradually descending into a similar state of despair and mental anguish.**
:Physical Sensitivity: Usher's delicate sensitivity to light, sound, and other external stimuli influences the narrator as well. He begins to experience heightened sensitivity to his surroundings and becomes more attuned to the subtle changes in the environment, mirroring Usher's own vulnerabilities.**
:Imaginative Power: Usher possesses a highly imaginative mind prone to vivid hallucinations and intense fantasies. This aspect also influences the narrator, who starts entertaining similar imaginative thoughts and fears that contribute to his growing sense of unease and dread.**
:Mental and Psychological Decline: As the story progresses, the narrator's mental state deteriorates under Usher's influence. He struggles with insomnia and becomes increasingly susceptible to the fears and anxieties that permeate the mansion. His judgment becomes clouded, and he begins to lose touch with reality.**
In essence, Roderick Usher exerts a psychological and emotional influence on the narrator, blurring the lines between their individual states of mind and drawing him deeper into the dark and mysterious world of Usher's family.