Generations of black South Africans have grown up with their grandmothers rubbing Vaseline into their skin to make them shine.
This ritual would be performed every day. The vigorous act of rubbing Vaseline into their skin would often be uncomfortable for the child in question, but their gogo would perform it as an act of love. It was to make them shine both literally and figuratively, giving them pride in their beautiful black skin and the confidence to take on the day.
So ingrained is that connection between Vaseline and confidence that many black South Africans have unconsciously carried the ritual into adulthood, sharing it with their own children.