What is the mood and theme of "A Visit to Grandmother"?

It is important to note firstly that "A Visit to Grandmother", although it does concern itself with issues of race, was not intended to deal solely with issues of race. Kelley was vocal with the critics about how much more this story is about. It is a story about family and unity, not just black unity, but the unity and togetherness of all people, and the contribution that every individual, black or white or yellow or brown, makes to the brilliance of the world. 

The mood, or tone, of the story is hopeful.