There are always going to be things about the cosmos we do not know. The number of neurons within our heads is too small to grasp every subtle mechanism.
Sure, we can say that there is more to the universe than we know or understand, and we can call that entity of order and causality by a number of names, but that's as far as it goes.
Positing a specific deity or set of deities is a pointless task. Trying to say that these entities occupy the same physical world that we do begs the question, Well, where are they?