Dualism is the belief that opposites in the universe work together for balance and compatibility. That the forces of good and evil need each other. A Freemason is taught that God and Satan are equals and depend on each other for the universe to function. It's sometimes a hard concept to grasp. The... moreDualism is the belief that opposites in the universe work together for balance and compatibility. That the forces of good and evil need each other. A Freemason is taught that God and Satan are equals and depend on each other for the universe to function. It's sometimes a hard concept to grasp. The same trick (psyc) is used in the "good cop vs. bad cop scenario"; both officers play different roles; but they are on the same team.