Neoplatonic dialectics (culminating in the philosophy of the ‘German Proclus,’ Hegel), as Marx acknowledged, is the philosophical core, stood by Marx and Engels on its feet, of dialectical materialism.
These dialectics can be simply demonstrated – Uluru is a monolith, a unity. While it looks utterly still – in its composition, in its infinitely divisible parts, it is in unceasing motion.
The contradictory motion of those parts and the laws bearing on them are the very factors which result in the appearance of permanent unity.
I am reminded of Plotinus’ profound and profoundly poetic position regarding his One – that it is the greatest activity in the greatest stillness.
The interaction of this rock, this material composition, with the greater, infinite material whole of the world (which for Plotinus was his Intellectual-Principle, copied in the material world) will one day result in the passing of its form and contents into other material structures.
Thus everything passes, and only matter (objective reality), driven by the (theoretical) absolute of change remains.