Non-duality is the projector while duality is the projection. By its very nature duality has opposites while non-duality has no opposite. If non-duality had an opposite it would not be "non-duality."
Duality is inherent in refraction, or reflection, and all the human mind is capable of doing is reflection; be it memory or desire, past or future, compare or contrast, pros and cons, they are all reflections. Duality takes place in the human mind while non-duality takes place in the human heart, at the core of our being.
The mind analyzes, breaks things a part, while the heart synthesizes, sees things holistically.
