Dualistic

The seeing of Truth cannot be dualistic (a "thing" seen). It cannot be seen by a see-er, or via a see-er. There can only be a seeing which itself is Truth.

In Europe, Cathari were a sect at odds with the Catholic Church during the 11th to 13th centuries. They believed in 2 gods, the evil Creator God Rex Mundi and Jesus. Like Marcionites in the 2nd and 3rd centuries, Cathari in the Middle Ages were dualistic. It is unclear whether Catharism was a continuation of Marcionite thinking.

A second difficulty that has distanced Mary from the communion of saints […] is the strategy that casts her as the feminine ideal and thus sets her up as the model for all other women. Those who take this approach invariably use a dualistic anthropology that divides male and female into watertight compartments, elevating sex to an ontological principle that results in virtually two types of human nature.