How does Ernest Hemingway use symbolism in his writing and how did his life experiences and complexities affect his writing?

Write a literary research essay on how Ernest Hemingway used symbolism in his writing and how his life experiences and complexities affected his writing. A Room on The Garden Side, In Another Country, A simple Enquiry, and Old Man at The Bridge are stories that could possibly be used that were written out of the experiences Hemingway had in war. You could also use stories like The Snows of Kilimanjaro because it is influenced by the African safari he took where he contracted amoebic dysentery. Focus on only 2-3 short stories and mainly focus on the symbolism.