How does Anzia Yezierska use imagery in America and I?

Yezierska uses beautiful imagery in the essay, using the techniques of metaphors and similes. For example, at the beginning of the piece, Yezierska speaks of the oppressive life in Russia and how the idea of America represents "wings for my stifled spirit - sunlight burning through my darkness - freedom singing to me in my prison - deathless songs tuning prison bars into strings of a beautiful violin."