The problem of concepts like 'future', is that we can only influence the very beginning of it, and don't know what result those actions will have. For it is but the future. In a sense one might wonder how we can worry about things that we can change today, and can't influence any further. Perhaps this fearless nature is a beauty often not seen by man.
When we dwell on the past, we tend to want to live there. When we dream of the future, we want to go there. Our dreams are where God paints a picture of a life waiting to be created.