Makes sense. We're electromagnetic beings so to exist without a physical body would be in the form of pure energy / electricity.
A buddy of mine told me that the Emerald Tablets says that Satan would use all sorts of jewelry/gems and engrave them into his armor which gave him powers.
Many gemstones vibrate at certain frequencies so it would have all sorts of effects I'd imagine. If you're gunna be like "dude it's just a stone get over it you nutjob", well then I implore you to look into Plutonium (radioactive energy) and Rubies (lasers) and all sorts of other 'rocks' that we already use for extraordinary things.
Rocks/stones are the bones of the Earth. Can be used for both good and bad… all comes down to intention.
I didn't go much into detail on gems and elements aside from going through a gemstone collection phase but from what I gathered:
Gold harnesses the energy from the Sun which is why it's used in temples (pyramids), and silver comes from and is the element of the Moon but otherwise not sure its benefits other than it eventually turns into Gold.
Maybe those ancient beings are trapped in certain gemstones and that's how it connects with people? Kinda like the LOTR. I still don't even understand why those things require other souls to thrive. Why don't they just accept Jesus unless they literally lack the hardware for that software (no hearts)?