12/30/2025
Hidden in the Persepolis Treasury were hundreds of identical green stone mortars and pestles. What was their specific purpose in the royal court?
According to new research by Gad Barnea (2025) from the University of Haifa, these chert stone objects are powerful evidence that sacred rituals were central to running the Persian Empire. Barnea demonstrates that the shape of these vessels perfectly matches the specific implements used in the Zoroastrian Yasna ceremony to prepare the sacred drink.
The study argues that high-ranking officials didn't just give monetary gifts to the Great King; they performed a solemn ritual to prove their fidelity. By drinking the truth-revealing haoma, they took an unbreakable cosmic oath of loyalty. The valuable stone vessel was then handed over to the Treasury as permanent physical proof of that spiritual promise.
We know this happened because ancient clay seals found at Persepolis serve as snapshots of the event, showing military officers alongside priests using these exact tools near a sacred fire altar. These green stones verify that for the Achaemenids, political administration and deep religious practice were intertwined.
Haoma was a potent, psychoactive ritual drink central to ancient Iranian religion, consumed by priests and officials to induce altered states of consciousness and spiritual visions.