The bead-embroidered crown with beaded veil, foremost attribute of the Oba, symbolizes the aspirations of a civilization at the highest level of authority.
In his seminal article on the topic, Robert F. Thompson writes, "The crown incarnates the intuition of royal ancestral force, the revelation of great moral insight in the person of the king, and the glitter of aesthetic experiences.
This dates back to the era of the Oyo warrior chiefs and palace officials in the medieval period, when powerful individuals of varied ancestries held prominent titles in the empire.
In Yorubaland, like in many other areas of Benin, Nigeria and Togo, chieftaincy titles are mostly given to successful men and women from within a given sub-sectional territory, although it is not unheard of for a person from elsewhere to receive one.
During any of the traditional investiture ceremonies for the chiefs-designate, the oba is regarded by the Yoruba as the major centre of attention, taking precedence over even the members of the official governments of any of the three countries if they are present.
As the oba leads the procession of nominees into a specially embroidered dais in front of a wider audience of guests and well-wishers, festivities of varied sorts occur to the accompaniment of traditional drumming.
Ceremonies such as this, and the process of selection and maintenance of networks of chiefs, are two of the major sources of power for the contemporary royals of West Africa.
Although most of the day-to-day functions of this position are delegated in practice to such figures as the arabas, certain traditional rites of the Yoruba religion can only be performed by the oba, and it is for this reason that the holders of the title are often thought of as being religious leaders in addition to being politico-ceremonial monarchs.