It's amazing how responsive we all are to fragrance. Irrespective of any memories it may trigger, aromas have an immediate and direct effect on our state of mind and body (via neural pathways which go direct to the brain). Create the mood that you want in your own space with these diffusers, and enjoy the benefit and beauty of essential oils at the same time. Use them in conjunction with single essential oils, essential oil blends, or create your own unique blend. See also How to use essential oils.