Nature’s aim for everything includes its cessation

Nature’s aim for everything includes its cessation just as much as its beginning and its duration – like someone throwing up a ball. How can it be good for the ball on the way up and bad on the way down, or even when it hits the ground? How can it be good for a bubble when it forms, and bad when it bursts? A candle is a similar example

Marcus Aurelius, Meditations Book 8, 21