The Sefer Yetzirah (Book of Creation) teaches the mysteries of the twenty-two Hebrew letters. The alphabet is divided there into three groups of letters.

One group is called the Three Mothers.
The second group is called the Seven Doubles.
The third group is called the Twelve Elementals.

The Sefer Yetzirah relates all the Hebrew letters to different qualities and aspects of our universe. Each are explained in terms of Time, Space and Spirit. For example, the Three Mothers in Time are the three seasons (hot, cold and temperate). The Seven Doubles in Time are the seven days of the week. The Twelve Elementals in Time are the twelve months of the year.

This painting deals primarily with the nature of the Three and of the Seven. It shows how these numbers are also prominent in simple color theory and simple geometry. As an artist, I use colors and geometric shapes and have found a way to express the general ideas of Kabbalistic texts like Sefer Yetzirah in graphic visual form.

In Sefer Yetzirah, the Three Mother letters are Mem, Shin and Aleph. Mem and Shin are two opposites, Water and Fire (Yin and Yang). Aleph is Air, which 'decides' between the two. I've related these Three Mothers to the three primary colors - blue, red and yellow.
Blue is a cold color; red is a hot color - two opposites. Yellow 'decides' between them and is thus in the middle of the color spectrum.
In this painting they are also presented as three bars, which join in the center and represent the three dimensions of Space. Blue is to the right, red is to the left and yellow is in the middle.
Here is a quote from Sefer Yetzirah. "Seven - three opposite three, and one is the rule deciding between them." In terms of colors, I interpret the first three as the three primary colors (blue, red and yellow) and the second three as their complements (orange, green and purple). In this painting, I made one triangle with the primary colors and an inverted triangle opposite it with the complementary colors. These are joined as a Magen David (six-pointed star).

These six colors are also here as six rings that are linked around the six points of this star - each colored ring opposite its complement. A large white circle runs through these rings representing how white light is formed from the totality of all the colors of the spectrum.
In the center of the star is a brown ring. This is the seventh ring, the one that decides between them. In Sefer Yetzirah, when the Seven Doubles are explained in terms of Space, it says: "Up and Down, East and West, North and South and the Holy Palace precisely in the center and it supports them all." In Time, the Holy Palace is the Sabbath, which can be seen as the center of the week.

In colors, I present it as brown because with paint, if you take any color and its complement and mix them together, you get brown. Yellow and purple make brown, blue and orange make brown as do red and green. So if you blend two colors across the diameter of the white circle, you'll always get brown. To get rich hues of blended colors, you have to mix colors that are next to each other around the circumference of the circle.
Notice how the three primary-colored bars are each a radius of the white circle. The relationship between the radius and the circumference of a circle in geometry is a mystical number that has no end - pi. The first three digits of this number are 3,1,4. The simple gematria (number value) of the Three Mother Letters is Shin-three, Aleph-one, Mem-four - 3,1,4!
It's interesting to note the similarity between the word geometry and the word gematria.

The Twelve are also hinted at in this painting by the twelve spokes that radiate from the center. Also, this painting, because of its symmetry and geometric nature, can be used as a yantra - a visual meditative device. If you focus your eyes on the center, the Holy Palace, and relax them, the entire image will begin to appear three-dimensional. It becomes like a colorful cube with twelve edges. Its six outer edges form a hexagon in earth colors.
Its six inner edges are the three primary-colored dimension bars and their extensions.