Symbolism in Hills Like White Elephants

I have decided that the subject of my research paper will be symbolism through setting in Ernest Hemingway's "Hills Like White Elephants". Maybe I'm a little ahead of myself, but I have already carefully thought out my thesis statement and from that I have generated three statements. I also decided it would be easier for me to break down these statements by writing down possible ideas in relation to each of them, in this way …

…statement may be that through the dry and lifeless setting, Hemingway suggests that the woman associates an abortion with a barren and lifeless day, secondly, the fertile hills with life and vegetation may symbolize her view in regards to her pregnancy, she either sees it as precious or sacred and in order to view the fertile land the young woman moves from the shade to the light, light might represent her desire to give birth).