Imagine that there are many versions of yourself on many planets very similar to your world but slightly different. In one you got the courage to ask the prettiest girl to the prom. In another world you missed the prom all together.
With this in mind if there were a way for you to meet your other selves which would be which? Would you be defined by how much money you had on the bank or the clothes you were wearing? No your life and who you are would be defined by the choices you made. The paths you chose to lead you to other choices and other paths.