The yarrow stalk oracle: the oldest way to consult the I Ching

Of all the ways to consult the I Ching, the yarrow stalk oracle is the oldest and the slowest. Fifty stalks, three countings per line, eighteen countings for a full hexagram: choosing this path means choosing the long way around on purpose. And that long way around turns out to be the heart of the method.

Fifty stalks of yarrow

Yarrow (Achillea millefolium) is a modest roadside plant with straight, tough stems, as common in Europe and America as it is in China. Yet in ancient China the plant was considered special: it was gathered in places of significance, and its dried stalks became the instrument of the oracle priests of the Zhou dynasty, well over three thousand years ago. The Great Treatise, the oldest commentary on the I Ching, already describes the counting method in detail.

You begin with fifty stalks, but one of them is set aside straight away. It takes no further part in the consultation and represents the undivided whole that precedes every question. The real work begins with the remaining forty-nine.

Three countings per line

One counting goes like this: you divide the forty-nine stalks into two heaps in a single movement, without looking or counting. From the right heap you take one stalk and hold it between your fingers. Then you count off both heaps in groups of four; the remainders of one to four stalks join it there. What sits between your fingers is set aside, and with the stalks that remain you repeat the game.

Three such countings together produce a number: six, seven, eight or nine. Six is old yin, seven young yang, eight young yin, nine old yang. You note down the line, starting at the bottom, and begin again. After six lines, eighteen countings, your hexagram is complete. What each of the sixty-four hexagrams means, you will find in the overview.

Count on twenty minutes to half an hour. That is not a flaw in the method; it is the method.

Why the long way works

The counting asks just enough attention to quiet your thoughts, and little enough to let your question ripen in the background. Hands that sort, a mind that empties: the ritual does what hexagram 52, Keeping Still, describes, becoming so still that the self no longer gets in the way. Many people notice that the question itself grows sharper while they count, and sometimes that is already half the answer.

The slowness also guards the seriousness of asking. Someone who counts for twenty minutes does not ask the same thing three times until the answer pleases. Hexagram 4, Youthful Folly, puts it plainly: the first clear answer is the answer.

The classical probabilities

The yarrow method has a mathematical signature of its own. For each line, the odds are:

• old yin (moving broken line): 1 in 16,
• young yang (resting solid line): 5 in 16,
• young yin (resting broken line): 7 in 16,
• old yang (moving solid line): 3 in 16.

The three coins, the best-known quick method, give a symmetrical distribution: moving yin and moving yang each come in at 2 in 16. With the stalks, then, yang moves three times as often as yin. That fits the classical picture: yang is the active force inclined toward change, yin the receptive that prefers to stay a while longer. How to choose between the two methods is covered in coins or yarrow.

Casting the stalks online

Not every house holds fifty dried stalks. You can also walk through the full ritual digitally: cast the yarrow online and the oracle performs the classical countings with exactly the same probabilities, counting by counting, line by line. The slowness and the attention remain; only the gathering falls away.

Whichever form you choose: the stalks are the carrier, not the message. A clear question and the calm to receive the answer do the real work.

Frequently asked questions

How many stalks do you use in the yarrow stalk oracle?

You use fifty stalks, one of which is set aside immediately. That single stalk takes no further part in the consultation and represents the undivided whole; the actual countings are done with the remaining forty-nine.

How long does a yarrow stalk consultation take?

Count on twenty minutes to half an hour. Each line takes three countings and a hexagram has six lines, so eighteen countings in all. The slowness is intentional: it gives your question time to ripen.

How do the yarrow probabilities differ from the coins?

With the stalks, old yang (3 in 16) is three times as likely as old yin (1 in 16), and young yin is the most common at 7 in 16. With the three coins, moving yin and moving yang are equally likely, each at 2 in 16.

Can you consult the yarrow stalk oracle online?

Yes. At theiching.app you walk through the full ritual digitally, with the same three countings per line and exactly the classical probabilities. No real stalks are needed.