: Benavides explores the idea that ancient monuments (like the Sphinx and the Great Pyramid) are "speaking" through their geometric and astronomical alignments, offering messages about humanity's origins and destiny.
The metaphorical "speaking" of the stones refers to the moment humanity finally deciphers these ancient messages, which Benavides suggests will be so profound or cataclysmic that "men will tremble". Amazon.com Publication Details Rodolfo Benavides (1907–1998). Approximately 370–400 pages. Originally published in Spanish; often found today in format on academic and document-sharing platforms like Slideshare Cultural Significance Cuando las piedras hablan los hombres tiemblan pdf
