When the First God was about to create our Universe from the Ninth Dimension, he was afraid of making mistakes. So he first created the Ninth Cauldron. Then he created the Key. After he created our Universe for the first time, he inserted the key into the cauldron and fast-forwarded time. However, he was not satisfied with what he saw at his first attempt. So he re-inserted the key, sat inside the cauldron, and rotated the controlling beam to the reverse direction.
In no time, the First God was ready to create our Universe again.
−Genesis: Legend of Shah