Local and cultural conditions modify this idea more. It is best for a person to choose the essential oil products found pleasing. This assures the person that the brain has accepted the aromatic as favorable, or at least neutral in limbic reaction. Because aromatics have a reflex action on the mind they can be used to train a behavior response on a primal level. An example is stress reduction.
Stress interferes with health and vitality.
First, use bathing, meditation, or massage to achieve relaxation and support this with the use of an aromatherapy scent to identify relaxation with the scent. Later in the day, when stress conditions arrive, the use of the scent will help recall relaxation. Another method is to use a scent to reinforce a personal affirmation in the same way. This natural reflex of the scent, mind, and body is aromatherapy.