Divination Through the Ages: Cartomancy, I Ching, Runes, and Geomancy Compared

Tarot is one entry in a much longer human tradition of structured, randomized interpretive systems. A tour of four of them.

A Shared Underlying Pattern

Across wildly different cultures and time periods, a striking number of divination systems converge on the same basic structural pattern: introduce a genuinely random or semi-random element (a shuffle, a toss, a cast), then interpret the result through a fixed, learnable symbolic framework. Tarot, covered extensively elsewhere on this blog, is one entry in that pattern — but far from the only one, and looking at a few others side by side highlights what's actually distinctive (and what isn't) about cartomancy specifically.

Cartomancy: Cards as the Random Element

Cartomancy — divination through cards, whether a purpose-built tarot deck or an ordinary fifty-two-card playing deck, which has its own long parallel cartomantic tradition — uses shuffling and drawing as its randomizing mechanism and a rich, illustrated symbolic vocabulary (the seventy-eight tarot cards, or the fifty-two-card system's own traditional meanings) as its interpretive framework. Its most distinctive feature relative to the other systems here is spatial: a spread arranges multiple drawn cards into fixed positions, letting a reading layer several distinct symbolic elements — a card's own meaning, its position's meaning, its relationship to neighboring cards — into one combined picture.

The I Ching: Structured Change

The I Ching, or Book of Changes, is a Chinese divinatory and philosophical text with roots reaching back roughly three thousand years, built around sixty-four hexagrams — six-line figures, each line either broken (yin) or unbroken (yang). Traditional methods for generating a hexagram include a formal yarrow-stalk counting procedure or a simplified three-coin toss, both designed to introduce genuine chance into which of the sixty-four hexagrams — and which specific changing lines within it — a querent draws. Where tarot's interpretive tradition is heavily narrative and image-based, the I Ching's interpretive tradition is built around dense, often paradoxical philosophical commentary attached to each hexagram, reflecting its dual identity as both a divination tool and one of the foundational texts of Chinese philosophy.

Runes: Norse and Germanic Casting

Runic divination uses the runes — the letters of historical Germanic alphabets, most commonly the Elder Futhark's twenty-four characters — typically cast or drawn from a bag as small inscribed stones or wooden pieces. It's worth a historical caveat here: while runes as an alphabet are genuinely ancient (in active use for writing across Germanic Europe from roughly the second century CE), clear documented evidence for runes as a formal divination system specifically is comparatively thin and largely reconstructed or reimagined during the twentieth-century revival of interest in Norse and Germanic paganism, rather than extensively attested in surviving historical sources the way, for instance, Roman and Greek augury practices are. Modern rune casting is a real and widely practiced tradition, but one that's more accurately described as a modern reconstruction inspired by genuinely ancient symbols than as an unbroken ancient practice.

Geomancy: Divination by Marks

Geomancy — not to be confused with the unrelated practice of feng shui, sometimes loosely called "earth divination" in English — generates its random element through a rapid series of marks or dots, traditionally made in sand or on paper without counting, which are then reduced into sixteen possible four-line figures, each with its own fixed meaning. The system has a well-documented medieval history, most extensively developed in the Islamic world (where it's known as khatt al-raml, "the sand writing") before spreading into medieval and Renaissance Europe, where it briefly rivaled astrology in popularity among learned diviners before falling into obscurity from which it's only recently been revived by contemporary practitioners.

The Common Thread

What ties cartomancy, the I Ching, runes, and geomancy together isn't any shared claim about how they work, but a shared basic mechanism: structured randomness, filtered through a learnable interpretive vocabulary, producing a fixed prompt for a human being to actually think through in relation to a real question. Across every culture and century these systems come from, that combination — genuine chance plus a rich symbolic framework — seems to be what people have consistently found valuable, independent of whether any given system's specific predictive claims hold up, which is precisely the same framing this app applies to tarot and astrology throughout its own educational content.

Two Related but Distinct Practices

Two further practices are worth mentioning specifically because they're commonly grouped alongside the four above despite working on a genuinely different principle. Palmistry (chiromancy) reads fixed physical features — the lines and shape of the hand — rather than introducing any randomizing element at all, making it structurally closer to physiognomy than to the randomized-and-interpreted pattern shared by tarot, the I Ching, runes, and geomancy. Astrology, covered extensively elsewhere on this blog, is closer in spirit to those four in that it also relies on a fixed interpretive framework, but its "input" is deterministic astronomical data (real planetary positions) rather than a randomizing act like a shuffle or a toss — placing it in something of a category of its own among these traditions.

Why These Systems Persisted

It's worth asking why structured-randomness divination systems specifically — as opposed to divination methods that have mostly faded from active practice, like reading animal entrails (haruspicy) or interpreting the flight patterns of birds (augury), both once major methods in the classical world — have proven so durable across such different cultures and centuries. One plausible answer, consistent with how this app frames tarot and astrology throughout its educational content: these particular systems combine genuine, unpredictable randomness with a rich enough symbolic vocabulary to support real reflection, in a format that's portable, repeatable, and doesn't require specialized materials that are difficult to obtain (a deck of cards or a handful of coins, unlike a sacrificial animal, travels easily and lasts indefinitely) — practical durability, on top of whatever meaning practitioners find in the practice itself.

Systems Not Covered Here

Even this tour leaves out several other well-documented traditions worth a brief mention for completeness. Scrying — gazing into a reflective or translucent surface such as a mirror, still water, or a crystal to induce and interpret visions — has a long history across multiple cultures, though it works on a different mechanism entirely from the structured-randomness systems above, relying instead on an altered attentional state rather than a discrete randomizing act. Tasseography, reading patterns left by tea leaves or coffee grounds in a cup, is a comparatively recent and more informal folk practice, popularized in Europe alongside the spread of tea drinking. Neither fits neatly into the cast-and-interpret pattern this post focuses on, but both are part of the same broader human pattern of finding structured meaning in something that starts out ambiguous.