This logo for the International Festival of Diversity uses the shape of a C and a D (celebrate diversity) and transforms them into two parentheses.
The parentheses represent the space where every person is welcomed, accepted and reunited. It's an open space that can fit everything and everyone inside.
This shape of the parentheses (CD) can be changed and spread apart (as you can see in image 3 and 4 of the submission) to put everyting inside, from words, to names, to images to graphic elements.
Doing this symbolizes the concept of the festival: as the parentheses involve all graphic elements, so the festival accepts everyone