Do we classify the metaphysical as something real or not?

Are we classifying the metaphysical, abstract as it is, as something unreal?

I asked the question in another thread, but it was a digression, so I'd rather ask it here.

rosborne interjected that to answer this question we must define the terms 'metaphysical' and 'unreal'.

Here's what wikipedia says:

"Metaphysics (from Greek: μετά (meta) = "after", φύσικα (phúsika) = "those on nature", derived from the arrangement of Aristotle's works in antiquity[1]) is the branch of philosophy concerned with explaining the nature of the world. It is the study of being or reality.[2] It addresses questions such as: What is the nature of reality? Is there a God? What is man's place in the universe?"

So the metaphysical is the world of ideas and abstract notions that we travel in whenever we're pondering reality.

Is this world a part of reality, or is it imagination?

Does it make any difference if we agree that imagination is something real?