Karma

But the question is what duty has been assigned to human beings ?That can be our karma or "swabhav"?

In all the above one thread is common which is "the power of non-discrimination" i.e. none of them discriminate. Here by non-discrimination I mean "engaged in doing of the assigned duty irrespective of the result". This is an inherent quality of all animate and inanimate(including our body) things. In a sense this is the basic quality of the whole universe. Only the human mind has the quality of discrimination. Accordingly it implies that our karma(assigned duty) is not different from other units of the nature. Only thing has to happen is that a shift in attitude of mind i.e. from "discriminating to non-discriminating". Then we can be said to be established in our karma (swabhava). Beauty is that we are already established in that as there is no way out, but only thing is that we are not aware of that state . It means finally "Awareness" has to be there or "Awareness is the Key".