Aerosol spray on canvas, kleenex, 3 coffee.
Dualism (from the Latin word duo meaning "two") denotes a state of two parts. The term 'dualism' was originally coined to denote co-eternal binary opposition, a meaning that is preserved in metaphysical and philosophical duality discourse but has been diluted in general or common usages. Dualism can refer to moral dualism, ( the conflict between good and evil), mind-body or mind-matter dualism (Cartesian Dualism) or physical dualism ( the Chinese Yin and Yang).
Moral dualism is the belief of the great complement or conflict between the benevolent and the malignant.
Moral dualism does not imply the absence of monist or monotheistic principles. Moral dualism simply implies that there are two moral opposites at work, independent of any interpretation of what might be "moral" and - unlike ditheism/bitheism - independent of how these may be represented.
For example, Mazdaism (Mazdean Zoroastrianism) is both dualistic and monotheistic (but not monist by definition) since in that philosophy God—the Creator—is purely good, and the antithesis—which is also uncreated—is an absolute one. Zurvanism (Zurvanite Zoroastrianism), Manichaeism and Mandaeism, are representative of dualistic and monist philosophies since each has a supreme and transcendental First Principle from which the two equal-but-opposite entities then emanate. This is also true for the lesser-known Christian gnostic religions, such as Bogomils, Catharism, and so on.
More complex forms of monist dualism also exist, for instance in Hermeticism, where Nous "thought" - that is described to have created man - brings forth both good and evil, dependent on interpretation, whether it receives prompting from the God or from the Demon. Duality with pluralism is considered a logical fallacy.
Moral dualism began as a theological belief. Dualism was first seen implicitly in Egyptian Religious beliefs by the contrast of the Gods Set (disorder, death) and Osiris (order, life). The first explicit conception of dualism came from the Ancient Persian Religion of Zoroastrianism around the mid-fifth century BC. Zoroastrianism is a monotheistic religion that believes that Ahura Mazda is the eternal creator of all good things. Any violations of Ahura Mazda's order arise from druj, which is everything uncreated. From this comes a significant choice for humans to make.
The religious dualism of Christianity is not a perfect dualism as God (good) will inevitably destroy Satan (evil). Early Christian Dualism is largely based on Platonic Dualism. There is also a personal dualism in Christianity with a soul-body distinction based on the idea of an immaterial Christian Soul.
Alternatively, dualism can mean the tendency of humans to perceive and understand the world as being divided into two overarching categories. In this sense, it is dualistic when one perceives a tree as a thing separate from everything surrounding it, or when one perceives a "self" that is distinct from the rest of the world. In traditions such as classical Hinduism, Zen Buddhism or Islamic Sufism, a key to enlightenment is "transcending" this sort of dualistic thinking, without merely substituting dualism with monism or pluralism.
In philosophy of mind, dualism is any of a narrow variety of views about the relationship between mind and matter, which claims that mind and matter are two ontologically separate categories. In particular, mind-body dualism claims that neither the mind nor matter can be reduced to each other in any way, and thus is opposed to materialism in general, and reductive materialism in particular. Mind-body dualism can exist as substance dualism which claims that the mind and the body are composed of a distinct substance, and as property dualism which claims that there may not be a distinction in substance, but that mental and physical properties are still categorically distinct, and not reducible to each other. This type of dualism is sometimes referred to as "mind and body" and stands in contrast to philosophical monism, which views mind and matter as being ultimately the same kind of thing.
In some cultures, people (or also other beings) are believed to have two (or more) kinds of soul. In several cases, one of these souls is associated with body functions (and is sometimes thought to disappear after death, but not always), and the other one is able to leave the body (for example, a shaman's free-soul may be held to be able to undertake a spirit journey). The plethora of soul types may be even more complex.
In recent years, but far after European Imperialism, the distinction between "eastern" and "western" philosophy has been less significant than in previous times. In the wake of these changes new religious and philosophical movements have drawn freely upon many of the world's religions to attract new initiates