"There are two ways to wash the dishes. You can wash the dishes so the dishes or clean. You can also wash the dishes to watch the dishes."
The moral I got from your koan when I first read it is what the difference is not in reality, but in the mind. That doesn't mean working when you don't feel like working. It means feel like working, or don't work.
The master replied, "When hungry, eat. When tired, sleep."