I think it's a matter of perception. Most people see growth as somewhere you start from and some time in the future you and up somewhere else, almost as if there was a predestined place you were to arrive. The truth of it is that there is no future. The future that is out there is imaginary, a projection of our thoughts into what could be. The reality of it is that you get there only through the present moment, which is all there is.
Now when you only have the present moment, the question becomes something different. You are where you are, but there's also the direction in which you are heading. Rather than having a Start and End, you have a Location and Direction. This direction can either be growth or decay, even standing still will have a tiny bit of one or the other in it. Growth then isn't a goal to arrive at, but an aim to live by, a direction to follow and a path to proceed on.
The question then is "Do you, right now, grow or decay?"
Another one of Steve's great articles on this topic is:
Self Acceptance vs Personal Growth