Manichaean theology taught a dualistic view of good and evil.
If you believe only in an afterlife, you are restricted to a very limited, dualistic view of time.
The most famous passages are those cited by Varro and Porphyry which suggest a dualistic view of progress.
One thing or the other will triumph, in this dualistic view, and the winner is supposed to be determined in an apocalyptic struggle involving a world conflagration.
So the dualistic views were contrasted by the monistic narration.
From this identification stems the dualistic view, since once there is an "I," there are also "others."
Indeed, dualistic, panentheistic and highly complex views of the Godhead are common in the Kabbalistic literature.
A number of known rabbis criticized Kabbalah for Gnostic-like dualistic views of God.
For an alternative atheistic and dualistic view of the soul in ancient Hindu philosophy, see Samkhya.
Although this dualistic view of the mind-body connection entails mentalism, mentalism does not entail dualism.