https://en.wikipedia.org/wiki/Syringa_vulgaris

Fragile flowers, such as lilac, only render their delicate scent through low yield extraction techniques, something that has virtually disappeared in modern society, sacrificed for more profitable methods, notably the use of synthetic replacements. Nevertheless, lilac extraction is being revived by ecologically-minded individuals across the globe, from Bulgaria to USA, whose efforts are rewarded by the magical aura that emanates from its scent, penetrating right into the soul.