Oud.

Oud — sometimes called agarwood or oudh — is born of an accident. When the wild Aquilaria tree is wounded by storm, insect or saw, it floods the injury with a dark, aromatic resin to seal itself. Decades later, that resinous heartwood is harvested, chipped, and either burned as bakhoor or steam-distilled into oil. A single kilo of high-grade oil can require hundreds of kilos of wood and a century of patient decay.

On skin, real oud opens leathery, almost animalic — a wave of barnyard, smoke and damp earth that perfumers call the 'fart note', and that connoisseurs immediately recognise as authenticity. Within twenty minutes the rough edges sand themselves down, leaving honeyed amber, sweet wood and a long, meditative trail. It does not whisper; it signs your name on every chair you sit in.

In the Gulf, oud is the grammar of welcome. It is burned in the majlis before guests arrive, layered onto the wrist before evening prayer, gifted at weddings in carved boxes. Every region speaks its own dialect: Hindi oud is dark, barnyard and medicinal; Cambodi is sweeter, fruitier; Borneo is cooler, almost mentholated; Omani Hojari leans incense-like.