The Martial Artist throughout this world's rich history has gained a surprisingly keen insight, gaining a similar understanding that caught even Aziel off guard despite his already long tenure.
Like in Nova, this world of Martial Arts was separated into similar stages.
The Martial Fighters as they slowly gained more and more insight and have eventually become capable of sensing this unique, new form of energy that enriched every creature, every entity and was available in different forms of concentration everywhere they looked was indeed called [Aether], or in some other cultures, simply [Source].