Making the Heavens Speak: Religion as Poetry (German: Den Himmel zum Sprechen bringen.

Rejecting anti-religious positions such as that of Karl Marx, it examines the genre's stylistic devices, or "theopoetics".

[1] Among the subjects it covers are the theatre of ancient Greece, the anti-mythological stance of Plato, ancient Egyptian polytheism, the theologian Karl Barth, Heinrich Joseph Dominicus Denzinger's Enchiridion Symbolorum, the universal claims of Islam, and the Book of Job.

[4] Stephan Sattler of Focus placed the book in a group of recent German books about the origins and history of "human understanding of the self and the world",[2] written by Hans Joas, Jan Assmann and Jürgen Habermas, which all draw from the latest decades of philological, historical and sociological research.

Sattler wrote that each of Sloterdijk's chapters can be read as a standalone essay, and that "this disturbing book should not be missed".