The unpleasant truth is that we only have now. Mu shin--no mind, teaches this. By it we come to understand that what we do now we must do with full concentration in the present. What of the past? What of the future? In view of the limited sphere of our influence we should give ourselves over wholly to the task at hand. Bend the full resources of your mind to the accomplishment of the goal in full understanding the the accomplishment is resultant of the Divine prerogative. But in view of the end to which we all proceed, we aught to give deep thought to our relationship to God--the ultimate ground of reality.
In light of complete uncertainty, how do rational beings maintain sanity? One may simply ignore the nature of one's existence and dream on until the day of harsh awakening; or, one may meet the vicissitudes of life with faith. "For that ye aught to say, if the Lord will, we shall live, and do this or that." James 4:15 In this we find the absolute measure of our lives: if the Lord will. In this is complete assurance. Here, the warrior may find complete peace and preparation for the uncertainties of battle and the finality of death. Only in recognizing the reality of the Divine hand of Providence can one meet reality rationally, as a man.
Tomorrow is the dream. You may meet the reality of eternity within the next moment. Burn an incense and carefully observe the tenuous curl of smoke. In the sinuous coils, see the span of your life.
"There is a poem from martial arts' history which reads: 'People think they perform their techniques themselves...unaware that their bodies are guided by the gods.' Those intent on 'putting on' techniques or becoming more skillful are sure to fail in the long run. It is more important to move in step with the gods, maintain an disinterested attitude, keep control over one's own emotions, and retain a sensibility which goes beyond the everyday." Masaaki Hatsumi, Soke