Dualism is a foundational position in metaphysics and the philosophy of mind that asserts reality comprises at least two fundamentally distinct substances or principles.
This structure typically involves an immaterial mind or soul, characterised by consciousness, thought, and intentionality, and a material body or physical world, which is governed by extension and mechanical laws.
Dualism stands in contrast to monistic ontologies, which seek to reduce all phenomena to a single fundamental substance or principle.
Proto-dualistic ideas emerged in ancient traditions long preceding modern philosophy, often emphasising a dichotomy between the soul (spirit) and the body (matter).
Zoroastrianism
One of the earliest documented forms is ethical dualism found in Zoroastrianism, which posits a cosmic conflict between two primordial principles: the benevolent spirit Ahura Mazda (truth, light) and the destructive spirit Angra Mainyu (falsehood, darkness).
Unlike absolute dualism, Zoroastrian doctrine views evil as ultimately subordinate and destined for defeat in an eschatological renovation of the world.
[[Platonism]] and [[Neoplatonism]]
Plato (c. 428–348 BC) introduced proto-dualistic ideas, describing the soul as an immortal, rational essence trapped in the mutable, sensory-deceptive body.
This otherworldly dualism prioritised the philosophical purification of the soul over bodily concerns. Plotinus (c. 204–270 AD), the founder of Neoplatonism, built upon this, conceiving of a hierarchical emanation from the One, with the soul descending into matter yet capable of ascent, reinforcing the body-soul antagonism.
Neoplatonic thought contains a Platonic notion that matter is negative, dirty, and evil, asserting that non-physical things must therefore be more divine and spiritual. The material world is the lowest stratum of reality, seen as a shadowy substrate or a source of corruption for the soul.
Gnosticism and Manichaeanism
Gnosticism, which flourished in the 1st to 3rd centuries AD, adopted a radical form of ontological dualism between good and evil.
Gnostic systems typically view the universe as a battleground between a supreme power of eternal light and the fallen world of matter (_hysterema_), which is deficient.
Gnostics held that this universe was produced not by the true God, but by an inferior being known as the Demiurge. This worldview views the physical world as a prison, requiring _gnosis_ (secret knowledge) to liberate the soul from bodily imprisonment.
Gnosticism’s strong ontological dualism resembles Manichaeanism, a system founded by Mani in the 3rd century AD which similarly viewed the universe as a conflict between the realm of light (spiritual) and the realm of darkness (material).
Critique and Manichaeanism
Christianity understands that dualism is a philosophical error and rejects the dualistic notion of co-equal, opposing forces.
The Nature of Evil
Evil is an absence or privation of God’s goodness, not as an independent, positive substance or principle.
This is diametrically opposed to Manichaeanism, which is a dualistic system that believes there are two eternal principles of good and evil forever fighting it out.
Critique of Matter and Creation
Neoplatonism, Hermeticism, and Gnosticism have a tendency to demonise matter, believing that the physical world should be treated as a prison. This is refuted by God Himself, who created the world and pronounced it good, even in its fallen state.
Gnosticism’s philosophical error is rooted in its diagnosis that man’s problem is metaphysical, that he is particular or physical, when man’s true problem is ethical and moral (the Fall).
Hermetic and Ontological Dualism
Hermeticism, while sharing many elements with Gnosticism, generally avoids strict ontological dualism between God and creation.
However, Orthodox tradition upholds an ontological dualism in the sense that God's essence and energies are uncreated, therefore absolutely distinct from created things.
In contrast, Hermeticism negates this absolute ontological dualism between God and His creation.
Metaphysical Critique: Dualism and Dialectics
Dualistic frameworks are often seen as structurally rooted in dialectics - the idea of thesis, antithesis, and synthesis.
The entire Greek Hellenic system, including Neoplatonism and the philosophy of Plotinus, is based on the philosophical error that distinction implies division or composition.
The Monad and Relativism
Dualistic and monistic worldviews—including Far Eastern religions, Hermeticism, and Platonism, fall into the same error, believing that all reality must ultimately return to the One or the monad. This is because they believe that multiplicity is subordinate to unity and that all distinction must entail division.
The goal of the alchemical _magnum opus_, culminating in the union of dualities (inner and outer, good and evil), is fundamentally relativistic and in opposition to traditional belief.
The Solution of the Triune God
The Triune God is both one and many.
This structure of the Holy Trinity avoids the dialectical tension inherent in dualistic systems.
God is equally one and equally three, demonstrating that multiplicity is not a lesser ontological status than unity, and there is an equal Ultima see between the one and the many. The distinction of persons in the Godhead does not imply division or composition, resolving the fundamental dialectical problem inherited from Greek philosophy.
Dualism, in its historical and philosophical iterations, attempts to resolve the complexities of reality, such as the relationship between spirit and matter, or good and evil, by artificially separating these categories, mirroring the process of a bad editor who splits a complex, coherent narrative into two competing storylines, forcing them into opposition rather than accepting their inherent unity and distinction within a single, higher reality.