끝 [kkeut] (sino-korean)
단 [tan] (native)
Everything has a start and an end. Both good and bad things, once started, will someday end. If it is something good, it may take a long time for it to bear fruit, but the results will go down in history. If it is something bad, the results will show up immediately.
From the moment you were born, the end of your life was already predetermined. When life ends, your body will cease to exist. And then in the same way you were once born, on the day you die, you will be reborn as a child.
If you think you have become too old, that is the total end. In that case, you will indeed grow old and decrepit quickly. Even though you’re getting older, you have to keep thinking about what you still have to do so that you don’t lose your fortitude and energy. Without losing your fortitude, you can overcome any difficulties and remain healthy. Your inner worldview has great power.