Q introduces us to Sister Mary Agatha in this delightfully improbable Dialogue. There are no new theological issues here. But we do learn some interesting material about the 18th century Anglican clergyman, John Wesley, the founder of Methodism.
This Dialogue is, throughout, simply playful.
Do you associate playfulness with Christianity and the Christian lifestyle?
Why would Q, who seems seriously intent on putting forth a rather different version of Christianity, spend an entire chapter in what seems like such a frivolous manner?
Try singing the grape stomping song yourself. Out loud. Especially if you're discussing this with others. What happens when you do? (It's not likely that you'll yawn . . . or even pandiculate!)