Consul; Substance dualism is the view that there are both material substances (bodies) and immaterial ones (souls).
There is no such animal as substance Duality.
The Soul, consciousness, has no substance, is immaterial.
Man is a duality; having both a physical and a spiritual Reality,
Logic representing the Flesh Body.
Reason, rationalization, representing the immaterial, consciousness, the Soul, Passion, that has no cause.
Desire has a cause; Passion, the seed of all living things, doea not, is innate.
All Living Things, is defined as being all Material Reality.
When the breath, the Immortal Spirit of God, was breathed into Man's Nostrils it was the Immortal, Boundless, Spirit of God, that became a Living Soul, the passion of God, Boundlessness, Freedom of Mind, consciousness, alive in the flesh body of Man.
Man is a duality, having both material and spiritual, Mind and body, Spirit and body, Spirit and Flesh