What's that on the cover of Baptist Identity and the Ecumenical Future?

What's the image on the cover of my new book Baptist Identity and the Ecumenical Future: Story, Tradition, and the Recover of Community (Baylor University Press), and what in the world does it mean? I answer those questions in my response to four reviewers of the book in the linked issue of the Pacific Journal of Baptist Research (vol. 11, no 2; November 2016) [click on hyperlink].

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