When I was in Afghanistan, I felt as though I was in a bubble and that outside the bubble was the real world, my real life waiting for me to come back. It was hard to feel so isolated, from everyone and everything that was important to me. This song really captured my feelings then.
the link: http://www.youtube.com/watch?v=m4tcRlHY-3Q&feature=related
I love this version from Scrubs. They totally got this one right.
the link: http://www.youtube.com/watch?v=GcsrnT7Tv1o