The Past isn't a concrete thing, even though we tend to think of it as such. There is no place where your past deeds, missed opportunities, or transcendent experiences exist. The Past only exists in our minds, in our memories and in our written records.
Using the past to judged who you are in the present, who you will be or what your future holds is fallacious in a major way. In order to understand why this is, we need to understand the nature of light.
So I've been thinking a lot - as I always do, focused mostly on what I believe.
I've come to a conclusion that what I believe in most is Courage. Courage isn't a definable emotion; I'd be hard pressed to believe anyone could explain what courage feels like, it comes in so many different forms that many times it's difficult to pinpoint (as an outside observer or during self analysis), it can be action or inaction.