In the movie Karate Kid, young Daniel asks Mister Miagi to teach him karate. Miagi agrees under one condition: Daniel must submit totally to his instruction and never question his methods.
Daniel shows up the next day eager to learn. To his chagrin, Mister Miagi has him paint a fence. Miagi demonstrates the precise motion for the job: up and down, up and down. Daniel takes days to finish the job.
Next, Miagi has him scrub the deck using a prescribed stroke. Again the job takes days. Daniel wonders, What does this have to do with karate? but he says nothing.
Next, Miagi tells Daniel to wash and wax three weather-beaten cars and again prescribes the motion. Finally, Daniel reaches his limit: "I thought you were going to teach me karate, but all you have done is have me do your unwanted chores!"
Daniel has broken Miagi's one condition, and the old man's face pulses with anger. "I have been teaching you karate! Defend yourself!" Miagi thrusts his arm at Daniel, who instinctively defends himself with an arm motion exactly like that used in one of his chores. Miagi unleashes a vicious kick, and again Daniel averts the blow with a motion used in his chores.
After Daniel successfully defends himself from several more blows, Miagi simply walks away, leaving Daniel to discover what the master had known all along: skill comes from repeating the correct but seemingly mundane actions. The same is true of godliness.