Dualism

Dualism essentially involves two personalities. When you attain God realization you experience His divine happiness everywhere. Before that you are aware what you perceive.

God

God is one , His names and forms are infinite. If this is understood, there will never be religious fanaticism.

Rationalism

Rational being. How do you define it? What sort of behavior or thinking can be treated as rational? Spiritual rationalism based on presence of GOD while atheist rationalism based on absence of GOD.