Maybe all the Nolan Batman films are part of the Inception-verse. Joseph Gordon Levitt incepted Bruce Wayne. He made Bruce dream that he had retired so that he could gain access to the Batcave in his mind!
I like the idea that the entire movie existed in Bruce Wayne's head. Bane represented his dark side, the person he would have become if he surrendered to the League of Shadows. Blake represents Bruce Wayne positive side, the man he would have become if hadn't become Batman. Miranda Tate is really Rachel who Bruce believes betrayed him and wants to punish. Bruce loses everything he sees as a burden, his money, being Batman, the city itself. Selina Kyle is actually Bruce's mother, the only women Bruce believes both abandoned him and won't leave him. That's why she wears the pearls.