The entire play is built on this invisible structure of call and response.  The call is the spoken word. The response is flesh.  The word made flesh.  It is tied to the Yoruban concept of Nommo, which loosely translated means: “speaking makes it so.”  Nommo is also a Dogon word from Mali that refers to the power of words to create reality and build community.  You will also find this idea in the book of Genesis.