I have ranged along my bookshelves and found the marvellous piece by my (long ago) mentor, the late Ulrich Simon, A Theology of Auschwitz. No mere academic work but written with the most disciplined passion. To pick it up again is to be transported briefly back past the noise of the Strand and the quiet of King's courtyard to the long high ceilinged room lined (of course) with books where he'd say "Read me what you have written for today."
To contemplate Auschwitz must be to contemplate who we are and question equally the abstractions that theology can hide behind and the metaphysical void so typical of contemporary thought and life. Choral Evensong must cut short these musings.