Hello! As the title suggests, I'm making my own game. To be more specific, it's a pen-and-paper system set in a fantasy universe. However, I am not content to have an "anything goes" mindset when considering how the universe in the game works; I want it to have a consistent and explained set of physical laws to account for the fantastic elements of the game. That said... To explain magic, so far I have the idea that the use of magic involves "arcane energy," a by-product of reactions involving "Qi," or "life energy" (much like how Thermal Energy is given off as waste when other forms of energy are used in real life). This arcane energy is then stored in and around the brain of a creature, where it "receives instructions" in the form of the various processes in the brain. To clarify, these "instructions" can be given by thinking certain thoughts, but the thoughts themselves are not the instructions. The "instructions" are sort of similar to a computer language in function in that they're rather complex and require combination in order to use effectively; for example, where in other settings there is single step to create and throw a fireball, my setting will have an "allocate arcane energy to act as fuel" instruction, followed by an "increase heat" instruction (which would need to produce enough heat to ignite the fuel), followed by a "move fuel to target" instruction, with optional additional instructions for further effects. Also, to use spells effectively, one would have to have knowledge of how things work in a general sense; in other words, magic is merely a tool to apply knowledge of science. The problem I'm having, though, is actually determining and visualizing the physical manifestation of the arcane energy itself. For a long time I've struggled to find an explanation of energy beyond variations of "the ability to work," and so I have little idea of what the physical manifestation of energy actually is. Recently, however, I came up with an idea which would hopefully allow me to at least work around my lack of knowledge: that the universe of the setting actually has multiple parallel "layers" of space-time, and these "layers" allow one to work around the physical restriction that two things can't exist in the same location at the same time. With that, there could be a layer which there would be a plasma-like material that would serve to contain the arcane energy (and there'd be another layer for qi as well), and where in the observable layer of space-time there would be the brain of a living person, in that same spot in the "arcane" layer there would be the plasma containing the arcane energy that the creature would use to power a spell. However, given my lack of knowledge I am unsure of the plausibility of such an idea. Thoughts?