The one line
Im (壬), yang water, is already moving. In saju (사주), the Korean reading of the four pillars of birth, the day master is the character that stands in your place in the chart, and this one reads as the current rather than the bank: something that arrives, passes through, and takes part of the scene along with it.
Where the character comes from
壬 carries the sense of holding something inside and bearing it along, and it is written close to 妊, the character used for carrying a child. What sits underneath it is not a still container but a moving one. Something with a great deal inside it, and somewhere else to be.
The images hung on 壬 are the river, the sea, the lake, the waterfall and the cloud. Look at what they have in common. The river is the plain case, water defined by the fact that it leaves. The waterfall is the same water with the drop added, all the movement arriving at once. The sea is where every river ends, and even the lake is fed at one end and drained at the other. The cloud gives the whole set away: water that has left the ground completely and will come down as rain on a place it has never been. When Mulsangjae paints a chart as a single landscape, an Im day master usually turns up as the water running through the scene and joining its parts, rather than as anything the scene holds still.
What it looks like in a person
The essence given for 壬 is flow. It does not stay in one place, it washes things clean, and it carries things from where they are to where they are wanted.
Written out in a life, the first part is restlessness with a purpose. This is the person made uneasy by anything that has stopped moving: a project parked awaiting approval, a friendship gone quiet, money sitting in an account doing nothing. The washing is easier to miss. Put this stem in a room that has turned sour after an argument and the temperature drops within ten minutes, not because the matter was settled but because the talk was moved along and something got rinsed off it on the way.
Left to itself, it looks at the whole distance and then goes the whole distance. Small scale bores it. And what it moves is seldom only itself, since people and chances travel with the current. The colleague who introduces two strangers who then build something neither would have built alone is doing what a river does, which is bring what is upstream down to where it can be used.
The words the tradition sets beside 壬 are breadth, wisdom, drive, circulation and vitality. Breadth is the river's habit of taking in every stream that joins it without asking where the water came from, which reads as a wide tolerance for odd histories and awkward company. Wisdom here is the kind that comes of having been to both ends. Drive is not a shove, it is the steady weight of moving water, which is why it wears down obstacles that shoving would not. Circulation is the instinct that things ought to keep changing hands. Vitality is simply what water does for everything near it.
The same element, the other half
Water comes in two halves, as each of the five elements does, and the pair is Im and Gye (癸), yin water. The axis between them is direction of travel. Im goes sideways and Gye goes downwards, and with that in hand you can work out most of the rest.
| Where they differ | Im (壬), yang water | Gye (癸), yin water |
|---|---|---|
| Essence | Flow. Going a long way | Soaking in. Moistening |
| Direction | Runs sideways | Comes down from above |
| Volume | Wide | Little |
| What it does | Washes clean and carries along | Moistens, and brings things up |
Read the volume row without turning it into a score. A wide river and a night of dew answer different problems, and a seed in dry soil gains nothing from being carried somewhere. What the two halves have in common is that both reach, one by covering distance and one by getting into places nothing else fits. The page for Gye (癸), the yin water day master takes the same four rows from the other side.
The season changes everything
Naming the stem is where most English writing about the four pillars stops, and it is where the reading properly starts. The stem says what the material is, the month says what state it is in, and water shows this more openly than the other four elements, because everybody has watched water change with temperature.
| Season | The image of Im |
|---|---|
| Spring | Water in spate |
| Summer | Water running cool |
| Autumn | Clear and quiet water |
| Winter | A frozen river. The flow stops |
That line rearranges the advice for this stem. Spring water is at its highest volume, swollen with melt and rain, and it is carrying half the hillside with it; the season offers force and opportunity and tends to be short on selection. Summer is where 壬 does its best work, cool and moving, because summer is when everything around it needs cooling. Autumn water is clear and quiet, which reads as depth and good judgement with one thing missing, since quiet water is not going anywhere: an autumn Im more often needs a channel found for it than more thinking done about it. Winter freezes the river. Nothing has been lost and the water is all still there, but it cannot be reached or moved, and what answers that is warmth from elsewhere in the chart rather than pressure to get going.
Two people can share this day master and want opposite things in the same year. That is ordinary, and it is why the month is read before anything is said.
What happens when it meets other characters
Im and Sin (辛), yin metal. Sin is metal already finished, and finished metal only shows what it is once it has been washed. Im is the water that does the washing, so this meeting reads as the position of making somebody else visible: the editor, the producer, the colleague who saw what a quiet person had and got it in front of the right room. A condition comes attached, and the tradition is firm about it. The washing works only while the water is clear. Clouded water on a polished surface leaves it worse than it found it.
Im and Gi (己), yin earth. Gi is field soil, and soil in moving water is the plainest picture there is of something losing its clarity. This is the meeting 壬 is asked to watch most carefully, and what it sets is a task of upkeep rather than avoidance. In a life the muddying is rarely dramatic. It is a build-up of small entanglements, half-kept promises and side arrangements, each harmless on its own, which together change the colour of the current. The remedy fits the problem: fewer commitments, each one kept plainly, and the water runs clear again.
Im and wood. Water feeds wood, so this pairing looks straightforward until you ask which job is being asked for. The same water either grows the tree or takes the heat out of the scene, and those are two different tasks rather than one task done twice. Settle what the chart is short of before deciding what the water is for. A chart already soaked does not want watering, and a parched one is not served by a current going past at speed.
The other side of the same strength
The bill for Im comes in two parts, and both are the strength seen from behind. The first is that it will not settle. Staying put feels to this stem the way standing water feels to everyone else, so the flat, the role, the city and the circle get changed more often than the people nearby would choose. The second is width bought at the price of depth: five things opened, each of them genuinely interesting, none of them taken as far as it would go.
Neither is a fault wanting correction, and neither responds to force, since a river held still stops being a river. Smaller measures work better. Pick one channel and run it deep for a set stretch, with the length of the stretch agreed in advance so it does not feel like a cage. Finish one thing before the next is opened, on the understanding that finishing is what turns movement into a record of having moved. And keep the water clear, because clarity is what this stem is actually graded on.
One letter out of eight
The day master is one character in eight, and the other seven set the tone it is read in. Im in a cold chart reads as water waiting for the thaw. Im with metal nearby reads as somebody whose work is bringing other people out. Im with wood reads as water that has a use waiting for it. The month, the hour, the ten year cycles and the yearly cycle all shift the picture, far enough that two people who share this stem may find little of each other in one description.
So take this page as the first note rather than the finding. It hands you the material and the questions worth putting to it, and stops there on purpose. If the four pillars are new ground, start with what saju actually is, then look at a full reading to see how eight characters are read together and painted as one scene.