How does roderick usher influence the narrator?

Roderick Usher profoundly influences the narrator by embodying the themes of fear, isolation, and madness that permeate Edgar Allan Poe's "The Fall of the House of Usher." The narrator's initial curiOSity and concern for Roderick's deteriorating mental state draw him into the oppressive atmosphere of the Usher estate, heightening his own sense of dread. As Roderick's psychological turmoil escalates, it reflects and amplifies the narrator's feelings of anxiety, ultimately leading to a shared descent into Horror. This interaction underscores the impact of Roderick's condition on the narrator's experience and perception of reality.