Accept That Change Is Inevitable
A great Zen teacher described the fundamental Buddhist perspective this way: "Not always so." Zen teaches that existence is always in flux, ever-changing and fluid. All things, from stars and humans to mountains, are part of a cycle of birth and decay. A wise person recognizes this immutable fact and faces it with equanimity.
The doctrine of impermanence can help us endure suffering, because it says that this too will pass away. If we do not cling to it, but simply note it, we can ease its pain.
This understanding is not totally foreign to Christianity, for the Bible also counsels us about the transitory nature of earthly things, including our own lives. In the words of Psalm 103: "As for man, his days are like grass, he flourishes like a flower of the field; the wind blows over it and it is gone, and its place remembers it no more." Accepting that life is ever-changing can make us value it all the more. We need to honor each moment and let it go.