Material World

Strictly speaking, what is considered the "Material World" is anything subject to the strict rules of physics. It's opposed to the Dreamverse in every way: one is Order, the other is Chaos; one is material, the other is immaterial; one is like earth, the other is like water. The Material World was not created; it is, in fact, the product of an indescribable cosmic necessity. This necessity dictates that: 

Since it is not a state of existence, Nothingness cannot exist.

This means that something must exist to fill the indefinable and paradoxical emptiness. That "something" is the Material World, which, with its rigid systems, manages to assert itself as a clear, defined, and paradox-free existence.

But is the existence of a metaphysical entity possible in a reality dominated by the rules of physics? 

The existence of a deity in the Material World has been the subject of various philosophical and theological questions over the millennia. Countless civilizations have turned to religion to give meaning to life and explain everything. Whether monotheistic or polytheistic, all these cults, however, were erroneous. They failed to understand that there's no intelligence behind the Universe. Things are as they are because they cannot be otherwise.

And Dogma is the personification of this concept.