“The thirty spokes unite in the one nave; but it is on the empty space (for the axle), that the use of the wheel depends.”
“The door and windows are cut out (from the walls) to form an apartment; but it is on the empty space (within), that its use depends.”
“Our axles don't match but our wheels are turning.”
“A brick could be affixed to each end of an axle, for an example of transportation in a pre-wheel society. ”
“Clay is fashioned into vessels; but it is on their empty hollowness, that their use depends.”
“It's like the Tibetan Wheel of the Passions. As the wheel turns, the values and feelings on the outer rim rise and fall, shining or sinking into darkness. But true love stays fastened to the axle and doesn't move.”