Duality is the greatest possible handicap in the correct appreciation of the Reality. Light is the opposite of darkness. Similarly Oneness of the Infinite Being is the opposite of duality or plurality. You have only to use the spiritually clear glasses to see every thing in the correct perspective.
Where with Allah guides those, who seek His good will, to the paths of safety and He leads them, by His will, out of darkness into light, and guides them to the straight path. (16, Maida).
All praise is due to Allah who has created the skies and the earth as well as the darkness and the light; and yet the infidels boost up equals for Allah.
(1, Al-Anam).
جناب حضرت حق را دوئی نیست،
در آں حضرت من وما وتوئی نیست۔
(Roomi)
The personality of Allah brooks no duality. There I, we and you do not exist.