Your subconscious can only do what it believes and it can only believe in the things that your conscious mind allows through its doors (into the subconscious mind).
The conscious mind is your subconscious mind's guard and once your conscious mind believes something to be true, only then will it allow this information through to your subconscious mind.
The subconscious can only act as it knows everything to be true. The subconscious does not have the power to tell right from wrong, it can only act as it knows for everything that is in your subconscious is there because you believe it to be.
Your subconscious is your hard drive, never sleeping, and therefore always working in connection with the Universe.