Leylines (LAY LINES)

These arteries branch through the deep rocks of Korav, channeling all magic. They are a source of power.
The power was tapped by the Dreignor .
The Leylines project invisible ribbons of power into the sky, reaching even the Aetherstep. Modern Skyship engines channel this power and use it to keep aloft. This is why Skyships must follow the Leylines.
The God Tower had to follow the Leylines as the immense power of the 'Lines was needed to keep the fierce structure from collapsing under its own weight.