There is surely nothing other than the single purpose of the present moment. A man's whole life is a succession of moment after moment. If one fully understands the present moment, there will be nothing else to do, and nothing else to pursue. Live being true to the single purpose of the moment. Everyone lets the present moment slip by, then looks for it as though he thought it were somewhere else.
Not to live as if you had endless years ahead of you. Death overshadows you. While you're alive and able—be good.
Remember that man lives only in the present, in this fleeting instant; all the rest of his life is either past and gone, or not yet revealed. Short, therefore, is man's life, and narrow is the corner of the earth wherein he dwells.