Postmodernism and the death of “I”

So for who does the “I” exist.  Does it exist for the individual who is constantly trying to identify with themselves or for society which is trying to identify and categorize  the masses?

In literary terms who has the power of narration; the I’s have it.  It is the subject of the story that controls the way in which space, time and character interacts with each other, and it is through that lense that the objects under refelection are objectified.  Now to say that in Postmodernism there is the death of the subject, I am not sure that I can agree.  Maybe the subject is not depicted wholely, like in Written on the Body, but the subject is there none the less.  It is still in control of perception and uses itself as a reference for all things that it reflects on.  For instance the narrator of Written on the Body admits in the end that all of the perceptions that he/she has on Luise only exists in the reality of the narrator and is in no way a complete picture of Luise.  Does such an addmitance of objectification signal a death in the subject or a recognition that neither the subject or the object is stagnant in one realm of relation to the whole story.  If we were to hear Luise’s version of the “relationship” with the narrator it would still be only half of the story.  So in reality the subject simultaneously takes on the role of the object and visa versa.  Maybe this can be seen in the way that the narrator in a sense in never really formed, in a way her/his presonhood only exists in the world that is created in her/his depiction of love, desire, Luise, and life.

So if neither subject or object can give a complete account of a narrative piece how does one derive at some truth?  Or is that really what has died?  The reliance on absolute truths?  What if a narrative piece showed the flipping of both the subject and the object word truth still be lacking conviction?