To become a true Master, one must fulfill two conditions. The first condition was to reach the Third Elemental Realm. The second condition was to create an absolute art. These two conditions were mandatory.
After one attained elemental externalization, he or she would have to focus on controlling and channelling elemental energy from the natural environment. Elementalists that had attained elemental externalization must first learn how to control the elemental energy of their base type. For example, Ai Hui, who was a metal elementalist, could control the metal elemental energy in the wind or the scattered metal elemental energy in the ground.
As an elementalist’s control over elemental energy improved, not only could he control the elemental energy of his base type, he could also draw and convert other types of elemental energy that engendered his base type.
