The 6th Plane of the Middle Pillar corresponds to Yesod, the ninth sephirah on the Tree of Life, often translated as “Foundation.” In the Hermetic Qabalah, this plane is the lunar receptacle that gathers and stabilises the energies descending from above, acting as the last complete vessel before the final materialisation into Malkuth. Its position on the Middle Pillar—the central axis that balances the dynamic polarities of Right and Left—makes it the seat of reflection, imagination, and the astral light.

Position on the Tree of Life

The 6th Plane occupies the lowest station on the Middle Pillar above Malkuth, directly beneath Tiphereth (4th Plane, Middle Pillar) and above the 7th Plane (Malkuth, also Middle Pillar). It is the ninth sephirah, Yesod, which in the traditional Kabbalistic arrangement acts as the foundation upon which the entire supernal structure stands. The Middle Pillar itself is the column of equilibrium, and the 6th Plane is its most translucent stratum, through which the formless forces of the higher sephiroth take on the first outlines of materiality.

Astrological and Planetary Correspondence

By the schema of Liber 777, the 6th Plane, Middle Pillar is directly linked to the lunar sphere. Yesod is the sphere of the Moon (Levanah), governing tides, cycles, growth, and the subconscious. This lunar correspondence endows the plane with qualities of receptivity, fluidity, and reflection—qualities that are essential for the work of transmitting the divine influx from Tiphereth below the Abyss into the structure of the physical world.

Historical Context

The concept of a “Middle Pillar” as a distinct column of sephiroth—balancing the severity of the Left Pillar (Binah, Geburah, Hod) and the mercy of the Right Pillar (Chokmah, Chesed, Netzach)—is a hallmark of later Kabbalistic synthesis, particularly as systematised in the works of Moses Cordovero and Isaac Luria in the 16th century. The Zohar already speaks of the “middle line” that connects the sephiroth in a harmonious flow, but it was in the Hermetic revival of the late 19th and early 20th centuries that the Middle Pillar took on a central practical role.

In the Hermetic Order of the Golden Dawn, the Middle Pillar became the core of a meditative exercise known as “The Middle Pillar,” designed to awaken and balance the subtle energies of the magician. The 6th Plane—Yesod—was understood as the lunar foundation, the sphere of the astral body and the seat of the yetziratic (formative) world. It is the plane where the magician learns to stabilise vision, to reflect the higher light, and to build the ethereal vessels that will contain the will. In Liber 777, Crowley codified this plane’s correspondences meticulously, ensuring that the 6th Plane, Middle Pillar stands as the fixed lunar centre on the tree’s central axis.

In the table of Liber 777, the 6th Plane, Middle Pillar appears at step 9 (Yesod) as the lunar foundation of the Middle Pillar—the reflective, stabilising force that anchors the higher energies in the formative world before they descend into matter.