'Udûn' is Creation.

What was once nothing but a quiet and empty valley mere months ago, is now an explosive hell on earth today. This is the nature of creation. While the lands appeared stagnant for centuries, the roots of the rock beneath were slowly expanding with fire. Then one fateful day, those roots reached the surface and the earth was suddenly brought to life. And while this event may at first appear destructive, these gases and this molten rock would eventually form into the air that we breathe and the land that we irrigate.

With this creation, we can exist.