African aesthetic

While the African continent is vast and its peoples diverse, certain standards of beauty and correctness in artistic expression and physical appearance are held in common among various African societies.

Taken collectively, these values and standards have been characterised as comprising a generally accepted African aesthetic.

In African Art in Motion, African art scholar and Yale professor Robert Farris Thompson turns his attention to cool in both the African and African-American contexts:

The mind of an elder within the body of the young is suggested by the striking African custom of dancing "hot" with a "cool" unsmiling face. This quality seems to have haunted Ten Rhyne at the Cape in 1673 and it struck the imagination of an early observer of strongly African-influenced dancing in Louisiana in the early nineteenth century, who noted "thumping ecstasy" and "intense solemnity of mien." The mask of the cool, or facial serenity, has been noted at many points in Afro-American history:

It is interesting that what remains a spiritual principle in some parts of Africa and the rare African-influenced portions of the modern U.S.A., such as tidewater Georgia, becomes in the mainline Afro-American urban culture an element of contemporary street behavior:

Negro boys…have a 'cool' way of walking in which the upper trunk and pelvis rock fore and aft while the head remains stable with the eyes looking straight ahead. The…walk is quite slow, and the Negroes take it as a way of 'strutting' or 'showing off'....

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Wikipedia