Hexagram 27, 頤 yí — usually rendered as Nourishment, sometimes Swallowing or The Corners of the Mouth — is built from Gen (艮 gèn, Mountain, still and keeping) sitting above Zhen (震 zhèn, Thunder, arousing and in movement). The upper trigram holds still; the lower one stirs beneath it. Read as a picture, the six lines even resemble an open mouth: firm at the top and bottom, hollow in the middle. That shape gives the hexagram its theme — feeding, and what we take in.
This is a hexagram about nourishment in every register: the food that sustains the body, the words that leave and enter the mouth, and the ideas and company that feed the mind. The question 頤 asks is not whether you are being nourished, but by what, and whether you are also nourishing others well.
The two trigrams and what they picture
Mountain above, Thunder below, is a still form over a moving one. Think of the jaw: the upper part is fixed, the lower part moves, and between them the work of chewing happens. The stillness on top gives the movement below its discipline. Nothing useful is nourished by agitation alone; the mountain’s quiet is what lets the thunder’s energy be put to good use rather than spent.
In practical terms, hexagram 27 describes a moment when the sources of your sustenance matter more than your appetite. What you consume — attention, information, relationships, food itself — shapes what you become. The hexagram invites a steady, deliberate intake rather than a restless grasping at whatever is nearest.
易经 · Book of Changes
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The Judgment — overall counsel
The Judgment of 頤 turns on one plain instruction: watch how nourishment happens. It is auspicious for those who tend their own sustenance with care and who look honestly at what they are seeking to “fill their mouth” with. The counsel is to observe — both the way others provide for themselves and the way you feed yourself.
This is not a passive reading. To be nourished well you have to choose your sources, and to nourish others well you have to have something worth giving. Perseverance in the right kind of feeding brings good fortune; feeding on the wrong things, or feeding others carelessly, does not. The hexagram treats self-care and care for others as one continuous discipline, not two separate duties.
The Image — the natural picture and its lesson
The classical Image places Thunder at the foot of the Mountain: energy stirring quietly beneath a still height. From this the reader is asked to be careful with two things — the words that leave the mouth, and the food that enters it. Both pass through the same gate, and both build or spoil a person over time.
The lesson is one of measured speech and measured consumption. Careless words feed conflict; careful ones feed trust. Undisciplined intake dulls the body; considered intake keeps it clear. The practitioner reads this as a call to attend to the small, repeated acts — what you say, what you eat, what you scroll and read — because nourishment is cumulative. The mountain does not move; it simply keeps, and what it keeps is built grain by grain.
Practical guidance
In work, hexagram 27 tends to favour tending your foundations over chasing new ground. It is a good season to invest in skills, relationships, and habits that feed you steadily — mentors, reading, disciplined routine — rather than to gamble on the immediate. Ask what your effort is actually feeding, and whether the return nourishes or merely fills time.
In relationships, the hexagram points to give-and-take: are you being fed, and are you feeding? Speech is highlighted here. Measured, kind words nourish a bond; sharp or idle ones deplete it. Where a relationship feels draining, 頤 suggests looking honestly at the diet of the connection rather than at the other person alone.
On timing, this is a hexagram of quiet accumulation, not dramatic action. Its counsel is to be deliberate, to choose sources with care, and to let the still mountain govern the restless thunder. Treat all of this as tendency and reflection, not as a fixed verdict — the I Ching describes the shape of the moment, not a sentence passed on you.
A note on changing lines
The lines of 頤 read from bottom to top as a progression through kinds of nourishment: from envying what others have, through seeking sustenance in the wrong direction, to being nourished rightly and, at the top, becoming a genuine source of nourishment for others. A changing line marks where your own situation is most active — the place where the picture is shifting. Flipping any changing line produces a second hexagram, which shows where the moment is tending. Read the primary hexagram as the present shape, the changing line as its live edge, and the resulting hexagram as the direction of travel.
To explore further, start with the I Ching hub, browse the full 64-hexagram overview, or read its neighbour Hexagram 28, 大過 Dà Guò. And if you want to see how the same trigrams and five elements shape a personal chart, plot yours free with the Ba Zi calculator.