How do the setting and her daily life reinforce the idea expressed in the line I am longing?

The setting and her daily life likely emphasize a sense of dissatisfaction or yearning for something more. Perhaps the mundane routine of her everyday life contrasts with a desire for adventure or change, reinforcing the concept of longing expressed in the line "I am longing." The environment she's in may highlight the feeling of unfulfilled longing, prompting reflection on what she lacks or desires.