"Honestly, I kind of have no idea? I know that there's one specific...
"Well, the closest thing you have for modeling them would be an Eternal? But that's not quite right, there's...more humanity in it than that implies.
"Anyway, one specific entity that this represents a shard of the attention and power thereof.
"Or maybe something I made in her image, really; I've always been good at taking magic apart and putting it back together in new and interesting ways, though I don't think that's what happened - I'd put so much more weight on the first possibility; I'm mentioning the latter only for completeness's sake.
"Anyway...I don't share this with other people. This is my mantle, there are many like it but this one is mine - excuse me, that's a reference to something you are ill-positioned to understand.
"Anyway, I don't share this with other souls, though I can...hmm.
"My internal experience of this is that it's something like a warm blanket on a cold night, without the implications of being wrapped up and sessile that that invokes. And I can wrap myself in it tightly for more warmth when the cold bites, or flare it out and share it, or...a variety of such things.
"But there's only the one blanket, and it's mine and no-one else's, even if I'm sharing it right now.
"There's a lot of other blankets, though, spread around, held by others who need the warmth, carried by people trusted to find places that need them, stuff like that. Not here, I should note, I'm the first person with such to have been within miles, but there are indubitably others somewhere.
"But, to extend the blanket metaphor, they've all been warmed against a fire that's not definitively infinite, and I don't want to take more heat than I need, in the moment. Or perhaps they're sort of all the same blanket, stretched through a portal, and I don't want to hog it, and I'm not definitively sure if there's an edge somewhere. Or...Well, what has you so concerned? Because I'm concerned that you're concerned, and don't want to worry you unduly?"