Each letter is link to a finger. The sensitive aspect of the project is represent by a hand. Different colours for different letters and the word center close the black line like the institution supervise the entire project.
It looks like a child hand when you're young at school, and you put your hand in clay to keep like a print of the moment.
Moreover, the hand can be necessary to dance, to dead, and especially to express, to make art, and to play music.