Our lives can become hectic and time can "fly by" if we don't purposefully slow things down to follow a plan of action. What determines our plan is a personal mission statement...but many people live without this one simple guiding factor.
A personal mission statement is an important starting point for knowing that we are achieving the things we want in life. There are a lot of ways to guage if society says we are winning or losing, but a mission statement gives us the feedback that really matters - are we living to our personal values.