盗梦空间看完存疑，再看一遍剧本后还是没有解决的问题，请帮忙解答

梦主负责制造梦境，梦的Subject由潜意识创造活动其中的人类。
Eames是雪山梦的梦主，并且利用梦主的能力创造了一个秘密通道。
Fischer是梦的Subject，Fischer的潜意识创造了雪山医院的警卫。
因为Fischer被告知这个梦的Subject是Browning，所以实际上Fischer是在和自己潜意识创造的警卫对抗。

看这段：

ARIADNE
Who are the people?
COBB
They’re projections of my
subconscious.
ARIADNE
Yours?
COBB
Sure-you are the dreamer, I am the
subject. My subconscious populates
your world. That's one way we get
at a subject's thoughts-his mind
creates the people, so we can
literally talk to his subconscious.
ARIADNE
How else do you do it?
COBB
Architecture. Build a bank vault or
a jail, something secure, and the
subject's mind will fill it with
information he's trying to protect.
ARIADNE
Then you break in and steal it.
COBB
Exactly.