When we think about the conscious and subconscious we may have a vague notion of two distinct areas of the brain, working together, making the connections and decisions which guide our behavior. That's not at all an accurate conception. The brain is far more integrated than that. Certainly some functions are associated with specific regions but in terms of hypnosis, most of the brain is involved.
The actual mechanism of hypnosis is disputed but some researchers feel that a relatively small group of neurons act as switch, pitting two sections of the brain against one another. The result is an abeyance of some of the critical portions of the brain—initiating a trance state—a suggestible state.
You've had the experience of remembering something critical somebody said about you decades ago, you'll never forget it! That comment was most likely delivered while you were in a suggestible state (over-loaded) and or issued by somebody you were highly suggestible to. We all have our "influencers."
The subconscious part of your brain is simply bundles of memories that have become "hard-wired." They tend to "associate" with other bundles, becoming a large part of your "auto-pilot" behavior process. Hard-wiring, a coating of the protein myelin, is part of the mechanism that helps the brain conserve energy. The brain doesn't have to "think' about that pattern any more. It's how you learned to walk, talk, read or write.
You might do things a certain way but have forgotten why, you just do it. You'll even habitually do things that part of you doesn't really want to do, smoking for instance. All sorts of behaviors, even speech affectations, ticks and body mannerisms, can become habituated to the point you may not even be aware of them.
It's a fact that advertising depends on your habit-making mechanism and on you being open to suggestion. Marketing looks for the right colors, sounds and shapes; the right spokesperson, (influencer) or jingle (associating yet another set of neurons) or, and this is key, they'll light up a fear response to make the suggestion stick. Fear is "sticky."
If you let this wiring process run on auto-pilot, you'll get loaded up with negative associations. The electrical charge of negative emotions are measurably stronger than positive ones by a significant amount.
This is what hypnotherapy works on, undoing, re-doing and rewiring the automated associations! We look for those suggestibility holes, find the bad associations and put good stuff in there. Sounds simple? It kind of is. Probably why so may Psychologists are learning hypnosis.
I am an illustrator as well as a hypnotherapist. The illustration in the header (originally a comp for a Marshall Electronics Ad) is mine as are others in this site.
I'm including an illustration of a neuron done for an aducational software company so you can meet the source of everything subconscious. I'm also including an illustration of how to set your home up for a Skype session.