For reasons not yet identified, the Luba de kamina ancestors on the one hand, gave their descendants a notion of the colour black linked not only to evil, but also and above all to misfortune, misfortune, mourning and things of lesser value, while on the other hand, they presented the colour white as a symbol of happiness as well as to things of great value.In times of mourning, for example, the Luba of Kamina prefer to wear dirty clothes, of lesser value, often black or dark.