Work?

"To work in the world is hard, to refrain from all unnecessary work is even harder." ~ Nisargadatta
 
What would ‘unnecessary work’ be? Could it be any type of endeavour which has as its purpose to confirm my identity, protect my mistaken beliefs or to validate my existence? Could it be that the Self smiles at such efforts and waits for me to take a ‘day off’? Or, better yet, retire?
Love, Diederik