Symbol or Substance? A dialogue on the Eucharist With C. S. Lewis, Billy Graham, and J. R. TolkienIn this engaging fictional conversation, Peter Kreeft gives credible voices to C. S. Lewis, J. R. R. Tolkien, and Billy Graham as they discuss one of the most contentious questions in the history of Christianity: Is Jesus symbolically or substantially present in the Eucharist? These widely respected modern Christian witnesses represent three important Western theological traditions. Graham, an ordained Southern Baptist minister who traversed the world