Construction beginning/end
"It was Gallahax that took the rampant energies of life and bound them into a flowing web. From this celestial web the mortal races were able to channel the very essence of the world itself into spells and items and even locations, giving them powers that until recently were reserved for the higher beings of the world. But this power did not last for long, and there were very few who were able to truly master it. The Druids were the first and only true masters of the web, and we all know how well that went for them." --- Arch-mage of the North Tower
Gallahax, perturbed with the rampant energy of creation and destruction bound them into a web that created some balance between the two. By limiting were these energies were able to go he was able to quickly shift and change were the energies were flowing to keep them in balance.