Ancient Stones of Divination
And thou shalt put in the breastplate of judgment the Urim and the Thummim; and they shall be upon Aaron’s heart, when he goeth in before the L-RD: and Aaron shall bear the judgment of the children of Israel upon his heart before the L-RD continually.”
Exodus 28: 30
They can help you to read the omens.
It’s in the Bible.
These stones were the only form of divination permitted by God. The priest carried them in a golden breastplate.”
from The Alchemist by Paulo Coelho