This nails it for me - enough said

I read this many years after Dr. Sheehan's death and years after I started running.  This nails it for me.

Why Do We Run?
by  Dr. George Sheehan

Why do I run? I have written over the years of the benefits I receive from running. Enumerated the physical and mental changes. Listed the emotional and spiritual gains. Charted the improvement that has taken place in my person and my life. What I have not emphasized is how transient these values and virtues are. With just a little thought, however, it should be evident that physical laws parallel those of the mind and the spirit. We know that the effects of training are temporary. I cannot put fitness in the bank. If inactive, I will detrain in even less time than it took me to get in shape. And since my entire persona is influenced by my running program, I must be constantly in training. Otherwise the sedentary life will inexorably reduce my mental and emotional well-being. So, I run each day to preserve the self I attained the day before. And coupled with this is the desire to secure the self yet to be. There can be no let up. If I do not run I will eventually lose all I have gained-and my future with it. Maintenance was a favorite topic of Eric Hoffer. It made the difference, said the former longshoreman, between a country that was successful and one that failed. However magnificent the achievement, without constant care the result was decay. I know the experience intimately. There is nothing more brief than a laurel. Victory is of the moment. It must be followed by another victory and then another. I have to run just to stay in place. Excellence is not something attained and put in a trophy case. It is not sought after, achieved and, thereafter, a steady state. It is a momentary phenomenon, a rare conjunction of body, mind, and spirit at one's peak. Should I come to that peak I cannot stay there. I must start each day at the bottom and climb to the top. And then beyond that peak to another and yet another. Through running I have learned what I can be and do. My body is now sensitive to the slightest change. It is particularly aware of any decline or decay. I can feel this lessening of the "me" that I have come to think of myself. Running has made this new me. Taken the raw material and honed it and delivered it back ready to do the work of a human being. I run so I do not lose the me I was yesterday and the me I might become tomorrow. Excerpt: Going The Distance

Dr. George Sheehan