In this world, wherever there is joy,
there is also suffering.
Joy is the cause of suffering.
Suffering is also the cause of joy.
So it is often said,
"Enduring suffering puts an end to suffering;
enjoying blessings uses up blessings."
There is an ancient Chinese saying,
"Suffering as a poor student for ten years,
as soon as one is successful,
one is famous throughout the land."
Another saying is,
"When suffering ceases, joy arrives."
But this joy comes from suffering.
It is like the farmer who tills the land.
he can use machinery now to plant his field,
and he doesn't have to expend so much effort.
But he needs gasoline.
If all the natural resources are used up,
he won't be able to use his machinery
and will have to return to manual labor.
Then he will have unlimited suffering, untold suffering.