What are some symbolic elements in the movie "The Green Mile"?

The tiny mouse, also know as Mr. Jingles, encounters the men on The Green Mile. At first Paul and the rest of the guards wanted to kill it, but as the movie progressed the men didn’t feel the same way. They saw the mouse as a friendly creature. Eventually Del takes him in as a pet which shows the compassion that he has. Mr. Jingles could perhaps symbolize the loneliness that the men feel on the Mile. This is the main reason that prevents the men from killing the mouse. Only Percy, who is cruel, still holds a grudge against the mouse and when he stepped on it, he shows everyone that he doesn’t care about anyone other than himself.