Sisyphus was condemned to push a boulder up a mountain for all eternity. Once he got to the top, the boulder would just roll down, and he would have to start again.
Most of them read that and think, what a horrible hell.
But I think it is a metaphor for our lives. We all have a struggle. We all have a boulder. And when we reach the top, there is nothing to do but start over.
I think its an opportunity to reframe the adversity we find in this life. Accepting it as part of the human condition. The struggle is the struggle, but we get to define it. Not the absence of it.