What is the unconscience mind, and how does it work?

Answer 1

I think it's everything engraved in your soul, from the time we were in wombs even.
it's usually inactive relative to the conscious mind but much more intelligent and protective.

Answer 2

In Freud's psychoanalytic theory, the unconscious refers to that part of mental functioning of which subjects make themselves unaware. The psychoanalytic unconscious is similar to but not precisely the same as the popular notion of the subconscious.