DUAL NATURE OF HUMAN MATTER

Is it true for every1? Does everyone experience the existance of duality in them????? If yes, then where does the concept of "UNIQUENESS" disappear when this "duality" intrudes in between? does the "Uniqueness" concept really exist
Is it possible to construct some postulates that explain and merge these two concepts so as to cover up for the drawbacks that is resulting due to this conflicting situation ?

But what exactly is this "Duality"?
Duality is the existance of 2 conflicting qualities [analogy: 2 opposite poles in a single magnet!!] within a single entity.. To quote an example, >> (i) Sometimes you love to be in solitude and decide that being lonely provides you time to think and is best for one's analytical and decision making qualities to surface up.. (ii) But what about the other times when u feel lonely and want somebody's company? These are the two "options" that keep on alternating between themselves when one feelz low.. Can these two be clubbed into one? Is it possible?

So, the question arises.. does this really exist or is this mirage? existance of 2 poles in a magnet is not a mirage.. nor is the existance of equal amount of "+ve" and "-ve" charges in an atom.. nor is the existance of "GOD" and "SATAN" in humans.. So, does it exist in human nature also? This duality concept is felt every where in nature so its validity cant really be questioned [or can it be?].. Humans are also Nature's creation, so, by default the existance is ensured.. But comin to the practical side of the issue, does it confirm the theory? I DUNNO!! Thats the reason i am bothered.. bothered to the core.............