This discussion isn't getting us anywhere is it?
Actually, I think it is. And I think we may be closing in on some important points.
Dark Matter and Dark Energy seem to exist. We can measure the effects of both, see evidence that they both exist.
This is similar to the destinction between Evolution and the Theory of Evolution. We can see that Evolution happened. There is simply a preponderance of evidence, so much so that Evolution is very close to being accepted as a fact. The TOE on the other hand is an attempt to explain what we see, what the evidence shows. It is something that can never be proven and someday may well be shown to be wrong and superceeded by a better explaination.
Now let's see if we can move back and tie the question of Dark Matter and Energy into the topic.
As stated above, we can see and mesure the effect of both Dark Matter and Dark Energy. Their existance, like Evolution, is supported by evidence. We are still developing theories or a theory that will explain what the evidence show. But that theory has nothing to do with the evidence.
The original topic is "Spirits and other incorporial things". Spirits, demons, ghosts, sprites and things that go bump in the night are significantly different than Dark Matter. So far, no one has ever been able to show any evidence of the existence of Ghoulies or Ghosties or Long Leggedy Beasties.
Until there is some evidence for sprites, spirits, demons of ghosts, there can be no theories related to them.
Aslan is not a Tame Lion