What is the theme of "She Walks in Beauty"?

The theme of Byron's "She Walks in Beauty" is an analysis of the many facets that come together to form a beautiful woman. The poem breaks down a woman's beauty by descriptions of physical, spiritual and intellectual traits.

In the first stanza, Byron compares the woman's beauty to a cloudless night, attributing it to a special, reserved beauty that is not seen in the daylight. Byron also makes a reference to her eyes. The second stanza compliments her balanced gracefulness and her face, which portrays the purity of her thoughts. The third and final stanza references her soft cheeks and cites her warm smile as a reflection of her innocent and loving spirit.