Someone once asked...
Someone answered with kindness...
big lesson was big rocks not worth pushing
Another soul answered...
No. Sisyphus was punished to push a rock up the hill forever. It's meant to be a warning on "useless work", e.g: Treadmills and grinding. The joke is "One must imagine Sisyphus happy", but it is clear by many different depictions of him on pottery that he is quite unhappy.
Another soul answered...
Myths are not lessons from life. Plato said a nation should create myths to enforce the social order, he literally called people sheep. According to Gmirkin, Plato influenced the writers of the Torah around 273 BCE to produce a book of myths which was then translated at the same time.
Another soul answered...
No. It's a story from antiquity used as a cautionary tale against hubris, thinking that one is equal to, or can outwit, a god.
Another soul answered...
The lesson of the myth of Sisyphus is that there are consequences for cunning mortals who try to circumvent the will of the gods. The lesson of "The Myth of Sisyphus" is that the human condition is an endless ferment of futility, and there is a purpose and enlightenment to be found in embracing it nonetheless.