The boulder is the two of them getting up to the mountain (and everything that happened to lead them there) and the fall is them falling off the cliff again and again. Both of them are Sisyphus pushing the boulder and they're the boulder too.
The boulder is the two of them getting up to the mountain (and everything that happened to lead them there) and the fall is them falling off the cliff again and again. Both of them are Sisyphus pushing the boulder and they're the boulder too.