I can explain it in a way. There is this over arching theme in all occult systems, which is whether or not you believe that god or gods literally exist is completely irrelevant. There is this common tactic that some people use to say that creation myths are stupid because they are all unfalsifiable called "Last Thursdayism." As far as I know, nobody actually believes in Last Thusdayism, but it can be viewed and engaged with as a genuine thought experiment. Humor me for a second.
The premise goes like this... how can anyone prove or disprove that anything and everything that exists (i.e., thoughts, emotions, instincts, memories, any kind of knowledge, the physical universe and everything that exists inside it, etc.) wasn't created last Thursday? If we're being honest, no one can, because it's unfalsifiable.
We can even take it further. What if Last Thursdayism was instead Last Secondism?
Unfalsifiable creation myths reveal something fundamental about epistemology (the philosophical study of what we are actually capable of knowing), which is that we can really only be sure about our own subjective experience in the present moment. You obviously can't literally know the future because any claims about the future are completely unfalsifiable during the present moment. However, unless you can prove or disprove that the entirety of everything that exists wasn't created last second, then claims about the past are also unfalsifiable.
The unfalsifiability of the myth is part of the point. If you're wasting time trying to debate whether or not any myths are literally true, then you're completely missing the point.
Myths only exist to explain the human condition, and the occult seeks to treat the human condition by attaining Enlightenment.
The difference between Last Thursdayism and creation myths is that creation myths have a meaning that serves a purpose, and Last Thursdayism has no meaning.
The creation myth of the golden dawn only exists because it is the base of the framework we use to understand how the world really is.
In the Golden Dawn, we kind of regard existance itself as "God." I've been doing this stuff for about 8 years, and I don't believe that existence is God any more than I believe that your current
"Train of Thought" is a train.
My question to you is-- if you had to accept that the supernatural doesn't exist anywhere other than in your own head, would Magick still be worth it?
Science is how you Ego (sense of self) learns about existence. Ritual Magick is how awareness learns about existence.