The conscious and subconscious minds.
An excellent way to get acquainted with the two functions of your mind is to look upon your own mind as a garden. You are a gardener, and you are planting seeds (thoughts) in your subconscious mind all day long, based on your habitual thinking. As you sow in your subconscious mind, so shall you reap in your body and environment.
Begin now to sow thoughts of peace, happiness, right action, good will, and prosperity. Think quietly and with interest on these qualities and accept them fully in your conscious reasoning mind. Continue to plant these wonderful seeds (thoughts) in the garden of your mind, and you will reap a glorious harvest. Your subconscious mind may be likened to the soil which will grow all kinds of seeds, good or bad. Do men gather grapes of thorns, or figs of thistles? Evert thought is, therefore, a cause, and every condition is an effect. For this reason, it is essential that you take charge of your thoughts so as to bring forth only desirable conditions.
~ Joseph Murphy, The Power of Your Subconscious Mind(1963)