According to the Buddha our human world is conditioned; the absolute world of nirvana is unconditioned. But there is more to it. Said again, our conditioned human world is configured Mind while Mind, itself, is an intelligible, dynamic, pure substance which is unborn and unconditioned.
We might say at this point that as intrinsically shapeless Mind, which has yet no knowledge of itself, we never cease trying to find our true self by chasing after Mind shapes, always ending up fettered by these creations—and suffering.
Putting this into a little story, we are skandha fish (i.e., the Five Aggregates) living and swimming in Mind water. Everything we see, let us say, is conditioned Mind water including our fish body. While it is also true that we are intrinsically the Mind water, we don’t yet know it. This is because we have never seen otherwise than conditioned Mind water. We believe conditioned things are exactly Mind water (yes, we are really stupid fish).
Then one day a fish named Siddhartha thought the matter over. He really contemplated the problem (he of course had no real butt so he could not sit on a seaweed zafu). Finally, Siddhartha caught a brief glimpse of pure Mind water. He described it as a positive absence—totally devoid of thingy-ness, ripples, vortices, shapes, etc. Yet this pure Mind water was real and powerful. It was like an invisible light. He further realized that not only did it animate his fish body but even his very fishy little thoughts were composed of this super Mind water. He was amazed!
But then his luck ran out. When he tried to teach this new insight the other fish thought he was crazy. They said things like, “What do you mean there is unconditioned pure Water? We don’t see any.”
And so Siddhartha swam away from these stupid arrogant fish and eventually found some fish who were capable of grasping his teaching. All, too, saw the pure water and were saved.