“You become what you think about most of the time.”-Earl Nightingale
This is perhaps the most profound, yet simplistic statement to describe the process of self-improvement. You can change your actions, but those actions will not remain fixed as a habit unless you change the underlying thoughts that have prevented you from making positive changes in the first place. In short, your life will only improve to the degree that your way of thinking improves. If you are not completely happy with your life at this moment, it is almost entirely due to your tendency to think disempowering, self-defeating thoughts. Contrary to what many people are led to believe, it has almost nothing at all to do with your circumstances. It is perfectly possible to be happy in the midst of a tragedy, just as it is perfectly possible to be miserable in the midst of great wealth and achievement. It is your interpretation of things that determines the quality of your life, not the things themselves.