While looking on the W.W.Web for something else, I ran across something really interesting. It's called the Sator Square; it's an ancient Latin palindrome. Its meaning, though, is subject to interpretation. The phrase reads "Sator Arepo Tenet Opera Rotas" in every direction, frontward and backward, up and down.
According to a 2003 article by Rose Mary Sheldon in Cryptologia, "The sator square is one of the oldest, unsolved word puzzles in the world. Examples of the square and numerous variations on it, have been found in Europe, the Middle East, Africa, and the Americas. Examples date from first-century Rome to the nineteenth century. Many questions have plagued scholars: Who composed it? What do the words mean? How has it been used in magic, religion, medicine and superstition ever since? Does the solution lie with mathematicians, philologists or theologians? All these questions remain unsolved, but the number of attempts by scholars to answer them grows yearly."
I found that there are endless websites dedicated to solving the mystery of this square and its meaning. One source, here, suggests that there are several possible interpretations:
"The usual translation is as follows:
Likely an invented proper name; its similarity with arrepo, from ad repo, 'I creep towards', is coincidental
'(with) work', '(with care)', '(with) effort'
Two possible translations of the phrase are 'The sower Arepo holds the wheels with effort' and 'The sower Arepo leads with his hand (work) the plough (wheels).' C. W. Ceram read the square boustrophedon (in alternating directions), with tenet repeated. This produces Sator opera tenet; tenet opera sator, translated: 'The Great Sower holds in his hand all works; all works the Great Sower holds in his hand.' (Ceram 1958, p. 30)
The word arepo is enigmatic, appearing nowhere else in Latin literature. Most of those who have studied the Sator Square agree that it is a proper name, either an adaptation of a non-Latin word or a name invented specifically for this sentence. Jerome Carcopino thought that it came from a Celtic, specifically Gaulish, word for plough. David Daube argued that it represented a Hebrew or Aramaic rendition of the Greek Αλφα ω, or "Alpha-Omega" (cf. Revelation 1:8) by early Christians. J. Gwyn Griffiths contended that it came, via Alexandria, from the attested Egyptian name Ḥr-Ḥp, which he took to mean "the face of Apis"."
I find the whole thing fascinating; as one of the articles pointed out, though, this is a mystery that can never be solved--only analyzed. And those, to me, are the most compelling mysteries of all.
(Photo image: Answers.com)