The Man and the Woman in the High Castle

The ending:

We are told that the characters in the novel live in some sort of
parralel universe/reality and that they have experienced some sort of
awareness of our reality.

That's the lock to understanding the story. The key though is subtler,
and once its realized then the entire story unfolds. The key is that
their reality is NOT that they are people in a seperate reality BUT
that they are characters in a novel.

Then the entire story reconfigures itself and it all makes sense... The
realization exists within them at a subconsciously level, and this is
manifested in their actions and conversations.

The story then is one about characters in a novel becoming self-aware
that they are "characters in a novel". The journey to see the Author
Abendsen then becomes a journey to see Dick. The I-Ching, a conduit to
the omniscient divine awareness becomes a conduit to the omniscient
author. Consulting the I-Ching becomes the process of asking Dick what
their locating in the novel's plot is. Etc.

Hence all the discution of "why did he write that specific book" become
the characters attempts to try to understand the plot of the book they
are in. The discussion of Abendsen's assasination becomes a
subconscious realization that only in a novel would he still be alive
(since the size of his book's insult to the Nazi's would have resulted
in his death a long time ago)

Hence all the discussion of "authentic". They are trying to determine
if their world is authentic. etc. etc.

Everything in the book aligns itself to this iterpretation
***

Ultimately though the book says the following:
The Grasshopper is a plot device in The Man and the Woman in the High
Castle
as
The Man and the Woman in the High Castle is a plot device in history

Hence the discussion about how much credit the author gets for the
writing and how much credit The Oracle gets.

And Hence why Dick subconsciously wants to know what place his novel
has in the big picture.

As for what the purpose of this story is in the greater scheme of
things?

It's not difficult to narrow it down to a single thing, because one
element of the story stands out as being particularily pertitent to the
"big picture".

The triangle. The novel is the vector that contains the Oracle's
response to the Triangle.

What's the triangle? Well of course its a square that's been folded in
two along the diagonal.

Hence the man who folded himself.

-Subey

"past the dragon's teeth, and the red and blue pill boxes is where the
truth lies"