Balance a spoon on your pointed fingers and it will always point north. The spoon is like a compass needle and your fingers guide the knowledge your body already has and uses it to point north. That's science, friends!
Notice how the fingers radical is a little different here? That's because you're pointing them really hard.
You realize that this ability to find north is probably really valuable, so you go to the nearest pawn shop and hock (ほく) it. Even your fingers.