The 'muminia' (indispensable) or 'kekoni' (beautiful) mask has a face covered with black patina, except for the eyes whitened with kaolin. Characteristic is the white band with black dots carved on the forehead and cheeks. The mouth seems to shout the warnings of the ancestors. This type of mask was declared extremely rare as early as 1952 by Biebuyck, an acute scholar of Lega culture. This specimen comes from a Baliga village (Shabunda area). The rare muminia masks belong to a large ritual community that encompasses several villages, in whose name they are kept in a secret place, by the oldest Kindi member, in the collective bag. The essential meaning of this type of mask is social, a symbol of cohesion between disparate groups. In the introductory rite of a 'bwame' candidate it is said: 'Come on, little friend! But where you will arrive, open your eyes before speaking '. This is how prudence is taught, the highest virtue recommended to the 'bami'.