...The eternal vital power builds them in the likeness of older worlds, placing them on the Imperishable Centres. How does he build them? He collects the fiery dust. He makes balls of fire, runs through them, and round them, infusing life there into, then sets them into motion; some one way, some the other way. They are cold, he makes them hot. They are dry, he makes them moist. They shine, he fans and cools them. Thus he acts from one twilight to the other, during Seven Eternities.