Astragalomancy

What it is

Astragalomancy is a branch of cleromancy that divines future events through the casting of dice or marked animal bones. Historically, practitioners cast the knucklebones of sheep, goats, or llamas, as well as shaped blocks of wood or bronze. The dice carry numerical marks or letters that yield random sequences when thrown. Diviners match these resulting combinations to specific codes, verses, or religious texts to interpret the outcome. Found in varied forms across Mediterranean sanctuaries, Central Asian trade routes, Tibetan temples, and Andean communities, the practice provides structured guidance for personal questions, legal resolutions, and ancestral communications.

Where it comes from

Casting bones and marked markers to contact divine truth reaches into prehistoric times. In the ancient Mediterranean and Near East, excavators frequently uncover sheep and goat knucklebones at sacred and funerary sites. Marked bones found beside the altar of Aphrodite Ourania in Athens indicate that the custom took place there after roughly 500 BCE. In Anatolia, communities carved extensive dice oracles directly onto tall stone pillars. Centuries later along the Silk Road, manuscript manuals in Sanskrit, Turkish, Sogdian, and Tibetan recorded numerical divination tables, showing how casting techniques traveled and blended across different cultures from the sixth century onward.

How it is done

Methods vary according to regional tradition. In classical Greece, inquirers rolled four-sided knucklebones and looked up the total on inscribed pillar charts keyed to specific gods. In early Tibetan traditions, a seeker threw a four-sided rectangular die three successive times to generate one of sixty-four possible numerical trigrams. The diviner then matched the symbolic notation to a written manual containing verses, spirit names, and practical advice. Along the Silk Road, diviners opened the rite by invoking deities such as Brahma and the Four Heavenly Kings before directing a west-facing client to throw the dice.

Tools and materials

Tools range from organic remnants to carved objects. Classical Greek astragaloi were oblong sheep or goat talus bones, or replicas cast in bronze or carved from timber, bearing four uneven sides valued one, three, four, and six. Tibetan practitioners use standard cubic dice or long rectangular rods with pips marked on four facets, alongside rolled dough balls containing hidden slips of script. In Andean funerary rites, players roll carved llama bones or markers shaped like miniature canoes fashioned from manioc and plantain stems.

What it is for

Seekers turn to dice oracles to resolve uncertainty across many areas of life. Ancient travelers consulted stone oracles about trade journeys and personal ventures. In historical Tibetan administration, dice served as a formal tool to settle civil matters, including marital contracts, interest disputes, and military drafting. Religious leaders and householders also use casting to guide daily decisions. During Andean funeral wakes, the throws are interpreted to discover whether the departed soul approves of community choices, while simultaneously providing spiritual support for the spirit's journey onward.

Who does it

Divination through dice is performed by ritual specialists as well as ordinary community members. In Tibetan Buddhist practice, ordained lamas, particularly those connected to the lineage of the protector deity Lha-Mo, carry out formal readings using consecrated manuals and dice. The Dalai Lama has also employed sortition methods for significant choices. In contrast, Andean funeral divination involves relatives and community mourners who gather around the deceased, rolling bones together to discern the wishes of the departed.

Peoples and places

The tradition appears across diverse cultures worldwide. In Southern Africa, the Shona people developed bone casting sets known as hakata. Ancient Greek and Anatolian societies integrated knucklebones into civic shrines and stone oracles. Along the Silk Road, Sogdian, Turkic, Indian, and Tibetan communities blended trigram methods with local deity invocations. In South America, indigenous groups in the Andes and Amazon basin maintain bone and canoe-shaped dice games during funeral gatherings, connecting the living with departed ancestors.

What people believe

Practitioners view the fall of the dice not as mere chance, but as a direct expression of unseen agency. Ancient Greeks linked specific numerical combinations to divine wills, regarding a rare roll of ones as a sign of favor from Zeus. Tibetan tradition associates dice divination with the guardian deity Lha-Mo, who carries dice at her waist and defends the Buddhist teaching. In Andean belief, the recently deceased spirit governs how the bones land, using the markers to communicate wishes and navigate the afterlife.

Compare and confuse

Astragalomancy is a specific branch of cleromancy, or divination through casting lots. It is closely related to pessomancy, also called psephomancy, which uses polished or painted pebbles instead of bones or dice. In pessomancy, pebbles are drawn or tossed from a pouch to reveal outcomes concerning travel, health, and personal success.

Law and persecution

Historical manuscripts reveal that dice casting held an acknowledged place in Tibetan legal administration. Divination manuals were bound alongside legal texts detailing eleven distinct categories of civil dispute. Officials used dice procedures, termed sho, to resolve cases involving debt interest, marital regulations, loan agreements, and military conscription, recording standard petitions that asked whether an issue should be decided through the dice.

Today

Dice divination remains an active practice within Tibetan Buddhist communities. Monastic practitioners belonging to the lineage of Dpal-Idan dmag-zor rgyal-mo regularly perform the mo casting ceremony. Contemporary lamas continue to author instructional commentaries on interpreting dice patterns, while traditional dough-ball and dice sortition methods are still consulted for monastic affairs and personal guidance.

Questions people ask about Astragalomancy

Good reading and sources

• The Next IncarnationThe New Yorker, Article

• Astragalomancy on WikipediaEncyclopedia
• More photos on Wikimedia CommonsPhotos and video
• Wikidata recordOpen data