The path toward the Magus realm could be achieved when one soul entered the spirit core, resulting in the forming of the spirit soul.
At the same time, all of the accumulated understanding of the elements would be turned into what was commonly called the Law.
Each of the ten elements, including fire, earth, water, wind, metal, plant, ice, lightning, darkness and light, had their own Laws.
The Law itself served as a guide, as it was a form of rules and system that governed the use of the elements which every magus should follow.
These were the theories Emery had learned from the elite class, but he never really understood how a Law actually worked in terms of measuring the understanding of the elements and how it would define a magus.