If I were to write a play entirely centered in the mind of a disturbed girl

how would it go?

http://www.nyaap.org/about-jungian-analysis#2

http://www.uky.edu/~aubel2/eng104/myth/essay2.html

http://www.scriptfrenzy.org/howtoformatastageplay

The dialogue of the play is languid and artistic, not colloquial, and everyone wears somewhat avant-garde type costumes.

cages

walking shadows - influential memories, people, emotions

surrealism

music

prominent usage of colors

archetypes

some frightening imagery

Dante?

very interpretive sets, props, costumes