I'll take you up on that. I think the universe is made up of order and chaos, the fundamental polarities. The universe has an inherent duality/polarity; positive and negative, light and dark, large and small, hot and cold- there's not a 3rd dimension to any of these, everything is one, the other, or on a scale in between. I'll come back to this duality. Now, the human brain seems to have evolved one half to deal with chaos (the right side of the brain dealing with intuition, emotion, creativity, imagination) and one to deal with order (the left side dealing with logic, language, maths, facts and analysis). If this is true, the fact that the brain has evolved to deal with this universe is strong evidence that the universe itself is composed of (or on an ever fluctuating spectrum between) order and chaos.
Note that order and chaos are poles; neither have a value attached, just like hot things can be good or bad and cold things can be good or bad depending on context and human subjectivity, chaos and order are not inherently good or bad states- although extremes of either are usually bad/don't make sense for life, as with extremes of the other polarities (temperature, charge, scale etc).
Now back to the duality of the universe. We see a material universe, "real space", so what is its opposite pole? In other words, what's on the other side of the coin of material reality? Is it reversely- charged antimatter? Well, no, because charge is not the only property of matter. MASS is the main property of matter, and antimatter has mass. To be a true opposite, in line with every aspect of the universe having equal opposites, it would have to be un-matter, or put more eloquently, immaterial. Something with literally the opposite of mass, something untouchable, unquantifiable with matter. Something that could only be knowable with the one tool we have that has spent millions of years tuning itself to the non-material aspects of reality- our right brains. Note that the right brain cannot write or speak, as the left controls language. I think that's why we feel closer to God through art and music than through text and speech. There are some deep mysteries and understandings that we truly cannot express in words.
So we have a theory of an immaterium based on the universal duality and its implication that the material world must have an opposite realm. We have the fundamental spectrum of ordered and chaotic states. That has some interesting parallels to the religion of Ancient Egypt- Kek bringing light from darkness, order from chaos. I think that's a decent enough base for good (balance between order and chaos) and evil (extremes), and if not a proof, then a compelling theory that there truly is a divine realm. I'll talk about my theories of where life/man comes into the equation if anons like my ideas so far.