Aromatherapy in ayurveda

When aromatherapy is blended with ayurveda the results are magical!!
Recently I've been studying extensively on aromatherapy and being a scholar of ayurveda I found that the two relate each other so closely, and the actions of one could be explained by the concepts of the other.
In aromatherapy essential oils are used and applied variously and they penetrate through the epithelium of the skin, nasal passages, bronchioles, and gastrointestinal tract to produce the desired effect.
In ayurveda the 'arka' kalpana is very similar to these oils. These oils are usually extracted from the plant sources in which the  virya(active principles) is present in the volatile part.