The simple passage of time changes us. Our personalities, identities, social circles, fears, and passions all shift to meet our needs throughout life. As we grow and mature, we must reconcile our past and resolve ourselves to the future. Time trawls up existential questions again and again: Who am I? What is my purpose? What do I want in life? What am I willing to struggle with? What happens if I fail? What could have been, but never will be? These kinds of questions can prompt deep introspec...