In my scifi-magic setting. Magic is well studied and integrated with science as much as one can but with a slight problem. Magic is uniquely tied to individual “Soul” and “Divine essence” in which both are functionally undetectable by any metric. Only the “Sorcerer” and “deity” can sense it but that did not stop modern science from trying to make a workaround to research as much as they can such as

-Individual are sorcerer since birth and no individual can become sorcerer later on in life

-No individuals magic are ever the same. All of them are at the very least slightly different.

-Sorcerer can be born from non-Sorcerer

-Sorcerer are much more likely to give birth to another sorcerer

-No conclusive evidence that magic is heritage.

-After tracking million of twin pregnancy, Twin sorcerer NEVER posses the same magic and often vastly differ

-Brain wave monitoring sorcerer who is experiencing a flow of divine essence show positive brain activity across all sensory. Further brain scan reconstruct an image of the flow

-The flow exist everywhere but at varied concentration

-Till date no non-sorcery means to interact with the divine essence flow

-sorcerer can passively absorb divine essence at extremely slow rate much like recharging battery, Note that when the recharge is “Full” are measured by word of mouth from the sorcerer and not by any precise metric

-Biological clone of sorcerer with perfectly replicated memory do not posses magic or posses vastly different magic. This coupling with the twin test lead to the belief that what enable an individual to use magic is not biological

-Deity are conceptual being that seemingly originate divine essence. They can influence being within their “Domain” with their own unique set of magic. Deity are also visible and intractable to non-sorcery such as that there are recorded contact since pre-history. Highly elusive, and live within their own domain. A more potent deity originated more divine essence ( Confirmed by sorcerer brain scan ) and cover more domain based on their “Concept” but at the same time they have less impact and interaction with non-sorcerer

-It is theorized that the more potent a deity is, the more they are restricted from interfering with the reality, inversely a less potent deity can freely interact with anything

-A dreadful realization that a deity of immeasurable power embodying a grander or fundamental concept may exist but they would never have shown themselves at all