Attar of Nishapur in Persia, much of medicine and drugs were based on herbs. Therefore, by profession he was similar to a modern-day town doctor and pharmacist. Rose oil means attar. Several musical artists have albums or songs which share the name of his most famous work, "Conference of the Birds", as well as the themes of enlightenment contained therein. Notably, jazz bassist David Holland's album, which was written as a metaphor for his own enlightenment, and Om's Conference of the Birds, which deals with extremely esoteric themes often connected with metaphors of flight, inward vision, destruction of self, and oneness with the
Essential oil acid which are so called since they are nutritionally required by a given living organism. In contrast to fatty oils, essential oils typically evaporate completely without leaving a stain or residue. Essential oils are generally extracted by distillation, often by using steam. Other processes include expression, solvent extraction, "sfumatura", absolute oil extraction, resin tapping, wax embedding, and cold pressing. They are used in perfumes, cosmetics, soaps and other products, for flavoring food and drink, and for adding scents to incense and household cleaning products. Essential oils are often used for aromatherapy, a form of alternative medicine in which healing effects