Camus said in the concluding line of The Myth of Sisyphus:

One must imagine Sisyphus happy.

I say:

One must imagine the language learner happy.

Rolling the same boulder up the same hill.

Vocabulary, forgotten, re-learned, forgotten, re-learned.

The task is never complete.

The hill never ends.

But the rolling — the daily, persistent, stubborn rolling — IS the meaning.

Not the summit.

The roll.