Inception mythologically explores the dream/reality dichotomy. A Theseus figure attempts to emerge from the maze and return home, dealing with father-figures, abandonment, and the monster in the middle. I was expecting there to be a more explicit revelation regarding Ariadne, literally and symbolically: while she certainly sets the thread to be followed, for her abandonment to fully parallel would require a bit more of an analogue than is necessarily present within the movie- although the final scene could certainly hint to that. Nevertheless, it is even thematically appropriate that the answer is as indefinite and as derivative as any mythological idea is, different entrances to the same labyrinth.