Chop wood, carry water.

There is an old Zen proverb, “Before enlightenment, chop wood, carry water, after enlightenment, chop wood, carry water.”

We need to be fully present in the moment, even when working. Through working, we can achieve enlightenment. In fact, it is easier to perform a repetitive task, such as cleaning, chopping or carrying, if you make the effort to become fully present in the task, feeling the action of it, becoming one with it. So you can make lighter work and improve your chances of achieving enlightenment all at once!

Further reading on the meaning of this proverb here and here.