We go from birth to death. Three out of ten follow life. Three out of ten follow death. People who rush from birth to death are also three out of ten. Why is that so? Because they want to make too much of life.
Heaven and Earth last for ever. Why do Heaven and Earth last for ever? They are unborn, so ever living. The sage stays behind, thus he is ahead. He is detached, thus at one with all. Through selfless action, he attains fulfillment.
When you accurately perceive the fluidity of things, you can also begin to perceive the constancy behind them: the creative, transformative, boundless, immutable Tao.
The Master's power is like this. He lets all things come and go effortlessly, without desire. He never expects results; thus he is never disappointed. He is never disappointed; thus his spirit never grows old.