Draw a three by three grid and fill it with the numbers one through nine so that every row, every column, and both diagonals add to fifteen. There is essentially one way to do it. That small stubborn object is the kamea of Saturn, and it is the first of seven squares, one for each of the classical planets, that the western magical tradition has used for centuries as the ground a sigil is drawn on.
Seven squares, seven planets
The set runs in order of the old planetary spheres, and each square is one cell larger than the last. Saturn takes the three by three, Jupiter the four by four, Mars the five by five, the Sun the six by six, Venus the seven by seven, Mercury the eight by eight, and the Moon the nine by nine. Each is filled with consecutive numbers arranged so that every line sums to the same total, and each therefore carries a signature set of numbers: the count of cells, the constant every row makes, and the sum of all of them together. Those numbers are what the tradition means when it assigns a planet its figures.
The correspondence is not arbitrary once you know the order. The spheres were counted outward from the earth, Moon nearest and Saturn furthest, and the squares were sized inversely, so the most distant and slowest planet gets the smallest, most rigid grid, and the nearest and fastest gets the largest and most intricate. Saturn is three squares of bone; the Moon is nine squares of changing water. If you want the temperaments underneath that ordering, they are laid out in the seven classical planets, and their weekly rhythm in the planetary days.
Walking a name across the grid
Here is how a sigil is made on a kamea. You start with a word: a name, an intention, a quality. Each letter is converted to a number, using one of the letter-to-number systems the tradition supplies. Those numbers are then located as cells on the square. You place a small mark on the first cell, draw a line to the second, then to the third, and on through the word, ending with another small mark. The result is an angular, wandering path, a shape that looks nothing like the word and everything like a route.
Two practical wrinkles come up immediately, and both have standard answers. When a number is larger than the square holds, it is reduced, most often by dropping a zero or by adding the digits, until it lands inside the grid. When two letters in a row give the same number, the line cannot go anywhere, so a small loop or a kink is drawn in place to record that the step happened. These are not fudges; they are the technique. A sigil made this way is a record of a journey across a fixed landscape, and the landscape belongs to a planet.
The letter-to-number step is its own subject with its own long history, and it is where the practice touches gematria. That is covered in gematria.
Why a grid instead of your own handwriting
The letter method described in how to make a sigil produces a private shape. It comes out of your handwriting, your aesthetic, your hand. A kamea sigil produces something else: a shape you did not design. You chose the word and the planet, and then the grid decided the form. Two people who work the same word on the same square get the same figure, give or take the drawing hand.
That difference matters more than it sounds. A private shape is a mirror. A shape handed to you by a fixed structure is a fact you now have to live with, and there is a particular quality of attention that comes from receiving a form rather than authoring it. This is the same reason casting lots, dealing cards, and drawing runes all work: the point is to get an answer that your preferences did not shape. The alphabet of that idea runs through the body in number.
Timing, and the body doing the drawing
Traditionally a planetary sigil is made in that planet's hour, on that planet's day, which is a scheduling constraint with a real practical effect: it makes you wait. You cannot do Saturn work whenever you feel like it. You look up the hour, you arrive at it, and the waiting itself has already begun to concentrate the thing. The system of hours is explained in planetary hours, and the wider question of thresholds and timing in the hours between.
The drawing itself is a small, exacting physical task, and it repays being treated as one. Sit so your ribs are stacked over your hips and your feet are actually on the floor. Draw slowly enough that the line is deliberate. Notice where you brace: most people grip the pen and hold their breath through the whole path, arriving at the last cell with a locked jaw. Let the breath run underneath the line. Ten minutes of careful tracing with a soft jaw is a legitimate concentration practice, whatever you believe about planets, and the settling it produces is the same one described in grounding practices.
A short practice
Take the Saturn square, the three by three summing to fifteen, and draw it out by hand. Then pick a single word for something you are trying to build slowly: patience, spine, discipline, whatever is true. Convert it to numbers, reduce anything above nine, and walk the path. Draw it three times, each time a little more cleanly. Notice that the third one is calmer than the first, and that your breathing changed somewhere in the middle without being asked.
Sigilla Praxis draws the kamea for you and traces the path as you type, with the planetary hours in view so you can work at the right time. Membership is $9.99/month, cancel anytime, and your first month is free. Enter Sigilla Praxis and walk a word across a planet.
✶ Continue the thread
How to Make a Sigil
The letter method, charging, and the discipline of forgetting.
Gematria: When a Word Has a Number
The letter-to-number step that gets a word onto the grid.
Planetary Hours
Why the tradition makes you wait for the right hour before you draw.