If I was the only indigenous inhabitant of this mediatorial ‘Nature’, then God could, I suppose, have produced a field of reality that bowed to my every whim. Yet although this would be a possibility, I doubt God would have actually done it; for such manifestation of obvious power on my part would run the serious danger of providing me a means to close my eyes to the truth of my position (assuming God granted me this knowledge from the beginning, which isn’t something I have argued yet) and so to willfully pretend it was by my own inherent power that I so effectively manipulated Nature. (Perhaps it is no coincidence that the Big Three Theisms claim the chief rebel against God was once the most powerful of His rational creations! I do not know a tradition that he was the lone inhabitant of his Nature, though: his rebellion affected, and hurt, more creatures than himself.) Or, if God had decided to wait until later to reveal my relationship to Him, then I would have been in even greater danger of self-conceited fatuity–for from the beginning I would have perceived myself to be what God in reality is: the ultimate master of reality.
No, I suspect if I was the lone inhabitant of Nature, it would still be a reality largely autonomous to my wishes–especially if God had chosen not to grant me a thorough perception of He Himself from my very beginning. God would thereby use Nature as a type of screen upon which I could begin to learn of He Himself–something not-me, greater than me, upon which I depend.
These are but speculations, although I think they are profitable ones and I may yet call some of these applications of principle into (a somewhat different) service. For the moment, however, I can set such speculations aside: I am not alone in this Nature. You (my reader) are here also; you and others, who are like me–for I must presume you are like me in some critical respects, if I am to mean anything by writing an ‘argument’. If God lets two of His creations interact with one another, what necessities must entail?
First, you and I must share a common overarching system that allows for points of contact.
It does not need to be exactly the same system–your system of Nature could be extranatural to some degree to my own, and even supernatural to my own (to the extent that some set of properties of your system could affect mine without being affected in turn). In that case, both systems must still rest within an overarching system that allows for common contact. This archsystem could itself be a reactive Nature (with God at least one step beyond it again), or the archsystem might be God Himself (literally ‘allowing’ the points of contact between subordinate systems He has created). I expect there are numerous possibilities here; but you and I could just as easily exist within the same common subsystem.
And I will here append, as a simple inference from sensory experience: it seems to me that I and (at least!) other human beings all do inhabit a common system of Nature–what we call the space-time physical world. For simplicity’s sake (although not forgetting other possibilities), I will here assume that this is true–I suspect very few of my readers will insist that they and I are metaphysically related to one another as angels or devils have traditionally been said to be related to men!