If you actually want to understand Dark Matter

Dark matter by the way simply means "Unknown matter".

I think to understand dark matter one must understand that "Dark matter" existed before anything in time or space existed. This is likely the most important clue. Then I believe Dark matter was separated into matter and Anti-matter. This combination created Matter galaxies like we live in but also dimensionally through the black hole in the center of each galaxy is an Anti-matter Galaxy.

So, what is dark matter?

It is matter and anti-matter combined and likely more than this.

So, what are we looking at?

It would be unimaginable to humans because we only live in the matter side of dark matter which is separated out from anti-matter.

So, somehow you would have to be able to combine matter and anti-matter without dying (which isn't presently possible I believe by the way) in order to even begin to understand what dark matter is.