In a novel set in a small town, the story begins with the narrator describing the lives of local residents in third-person. The focal character, a middle-aged teacher, is introduced through the eyes of her students, each with differing opinions about her, creating a layered perception of her personality. The narrative then shifts to the teacher's internal thoughts and feelings, revealing her vulnerabilities and desires. This shift allows readers to see the contrast between public perception and private reality.
Considering the use of narrative perspective in this passage, how does the shift from third-person observation to the teacher's internal monologue affect the reader's understanding of her character?