“The Holy Grail . . . [is] one of the most enigmatic creations of the Middle Ages; a thing of such supreme power and importance that only the bravest and most chivalrous should attempt the search. For what, though There is no shortage of theories about the Grail, possibly from the Old French word graal, meaning dish or salver, but many other derivations are suggested. Its most commonly described as the vessel used by Christ at the Last Supper and later used to collect his sweat and blood during his final hours. Others describe it as something akin to the Holy Spirit and able to bestow wisdom and revelation. Perhaps, as some suggest, it is not an object at all, but unshakable faith in sanctity and its power. The Grail, in other words, could be all things to all seekers.”

—Brian Murphy, from The Root of Wild Madder: Chasing the History, Mystery, and Lore of the Persian Carpet, 2005.