Answer:
Readers gain insight into the narrator's shame after he cuts the cat’s eye
Step-by-step explanation:
According to the excerpt from "Black Cat", the narrator describes how he cut the cat's eyes and his feeling of shame after the deed.
"I blush, I burn, I shudder, while I pen the d*mnable atrocity", this first-person point of view shows that the narrator is ashamed of what he did.