When it comes to Law Mastery in Aether, there are three great Realms: Basic Understanding, Law Fragmentation, and finally, Law Integration.
As its name suggests, Basic Understanding is the most basic of the three states of comprehension. Martial artists at this level develop a fundamental comprehension of universal Laws and how they relate to martial arts and spells. They start to understand the basic principles of these Laws and apply them to enhance their abilities, but it is still elementary and only granted a slight upgrade in power.
Of course, there are exceptions to the weakness of Basic understanding. Some Laws, even at this level, can significantly improve your might, but those are extremely powerful and challenging, such as the Law of Space. And even then, their understanding is still shallow.