Aromatherapy A Mythological Approach for Medicine, Medicinal and Aroma-therapeutic Use of Plants, Essential Oils and Plant Sources Used in Aromatherapy, Traditional Uses of Essential Oils in Aromatherapy, Extraction Methods of Essential Oils from Aromatic Plants, Essential Oils Extracted From CO2 Extraction Method, Role of Aromatherapy in Relieving Pain, Aromatherapy for Reducing Mental Stress, Plant Resins Used in Aromatherapy, Commercial Perspective of Essential Oil