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 lavender essential oils. Two published sets of case reports suggest the lavender oil may be implicated in some cases of gynecomastia, an abnormal breast tissue growth in prepubescent boys. The European Commission's Scientific Committee on Consumer Safety dismissed the claims against tea tree oil as implausible, but did not comment on lavender oil. In 2018, a BBC report on a study stated that tea tree and lavender oils contain eight substances that when tested in tissue culture experiments, increasing the level of estrogen and decreasing the level of testosterone. Some of the substances are found in "at least 65 other