This is a good START to get some key ideas and keywords. You should further look for academic resources.
Loneliness/ Isolation
Patriarchal Oppression
Abuse
Symbolism
Repetition
Foreshadowing
First person voice (monologue)
Poetic and surreal imagery
Social (e.g. Feminism)
Historical & Cultural (e.g. Religions)
Psychological (e.g. Paralysis, isolation, loneliness)
