The phrase "to roll the boulder" means to take on a difficult or challenging task, like pushing a large rock up a hill. It implies dealing with a heavy burden or obstacle that requires a lot of effort and determination to overcome. Full definition
It's sort of like rolling a boulder up a hill. (entrepreneur.com)
However, with the recent sell - off to some, it feels like the entire precious metals complex is similar to the Greek myth of Sisyphus where the sinner is condemned to an eternity of rolling a boulder uphill then watching it roll back down again. (theaureport.com)
Having stagnant energy in your home is like rolling a boulder up a hill and having it roll back on you each time you stop to rest: Everything requires lots of force, and nothing is fun. (mindbodygreen.com)