Is there a novel (plot, setting, characters, etc.) that has essentially the same or roughly the same amount of abstract ideas as poetry? Basically, like the Iliad or something, but more updated and maybe even a little more abstract or dreamy in atmosphere and in concept.. Essentially, a novel that is about an idea or theme of ideas, rather than an actual unfolding of events. If you can't think of any, do you think you would read something like that? Of course, there would be a point to it, it would not be senseless drivel, though it wouldn't read as a dead straight novel.
sorry, but i can't make head or tail out of your first question, or descriptions, so can't answer your second question... first of all, all poetry is not just 'abstract ideas'... in fact, i'd say the vast majority isn't... the iliad, for instance is very specifically about a war and its leading characters, detailing the unfolding of events quite logically... and clearly/specifically, for the time in which it was written... so, what is it exactly, that you're thinking of writing?... and would you be writing it in rhymed, or blank verse?