Realm

A Physical Realm, or more commonly known as a Realm, is a domain of space that is inaccesible and indescribable using the concept of dimensions.

These spaces are like segments of everything (by everything, it is truly meant everything), which are extremely different in nature. The difference between the 1st Realm, commonly refered to as just Reality, and the 2nd Realm, is so great, that it took scientists millions of OYC just to recieve a packet of information from that Realm. Different Realms have totally differing axioms and natural concepts. Even concepts like size are thought to be different between Realms. Also, Realms do not have a size.

Our understanding of Realms decreases as we move on to the higher Realms.