I struggled for several decades to understand composite wholes (organisms, organs, ecologies, societies, and so forth (not to mention molecules, atoms (in the Rutherfordian sense rather than the Democritean), cells, organelles, hadrons, etc.)) as deriving from and completely explained by the interactions of their constituent parts, until I finally realized that it simply can’t be done. Such “explanations” inevitably invoke the whole they are trying to explain as an obscure feature of their parts. They are, i.e., somehow or other circular. This is why honest and careful materialism *just is* eliminative.
The derivation must run the other way, if we are to understand either wholes or their parts. And once we run the derivation in the proper direction, taking the whole as itself an ontological real independent of its parts, and prior thereto, and furthermore definitive thereof, why then all sorts of vexing problems that simply cannot be solved under the terms of materialist modernism – the mind/body problem, in particular – simply vanish. There are to such ontological holism furthermore all sorts of interesting consequences, that tend to validate both our quotidian experience and the deliverances of traditional supernaturalism.