I think it was to point out to people that ultimately we control our own fate. Life today is exactly what the devil convinced us we wanted or that we had no other choice. But it was still our choice and it's perfectly fine because "WE" can all change it whenever we want. There is no obstacle standing in our way except our own stubbornness to accept an error. It along the lines of the idea that success is a state of mind. A "burn the boats" mentality toward what you want. It can be hard in our world, working alone in most cases, to see the changes in the world that you want. If you study history and philosophy enough you know that often the problem most have encountered is related to direction and path. Often it is more important to know where to throw the ball rather than simply how hard you can blindly throw it. Once you know your direction, ultimate success becomes irrelevant in many ways.