Same can be said for just about aspect of reality, physical or otherwise. For example, gravity, electrical and magnetic attraction and repulsion, light/electromagnetic radiation, the workings of the atom, the Big Bang, Dark Energy, Dark Matter, the totally bizarre world of quantum mechanics, on and on.
We have a general idea about what these things are and how to apply them in practical use, but we are still very much in the dark as to their ultimate fundamental nature, and to what is really going on, assuming there is such a single bottom line truth or explanation to everything.
We’re getting a little closer to agreement, possibly. Having a general idea about what something is might seem very different depending on level of expertise, and whether the concept of origin is included.
Underlying all discussions of origin—in the biggest picture of all big pictures—is the question of first premise. That is, the first premise of naturalism vs the opposing view.
The naturalist can do little more than admit to being completely in the dark when asked to give an account of nature’s origin.