Night

The principal symbol in the poem is night, which symbolizes the speaker. The speaker identifies herself with the night, and notes that they share many of the same experiences. Night thus becomes a symbol that can externalize internal experiences.

Darkness

Literal darkness symbolizes psychological or emotional darkness. While the night itself is literally dark, it is also dark in the speaker's mind and emotions. By embracing the literal dark of night, she also embraces her full range of emotional experiences.

Friendship

Friendship is a symbol for all forms of human connection. The speaker mentions the lack of friendship and connection with other people, but also creates such a sense of connection with the image of night.