A grimoire sits open on a desk. A brass pentacle rests at one corner, its lines clean and unbroken. Opposite it, a piece of parchment bears a different figure: jagged, asymmetrical, drawn with a needle dipped into a shallow dish of ink and blood. The first is the Seal of Command — the magician’s tool of authority. The second is the Seal of Blood — the demon’s mark, often drawn with the magician’s own blood to seal a pact.
Definition: Two Seals, One Circle
In the working vocabulary of ceremonial magic, the Seal of Command refers to the protective talisman worn or placed by the magician to assert control over summoned entities. It is most often a hexagram (the Seal of Solomon) or a pentagram inscribed on metal, parchment, or wood. The Seal of Blood is not a term found in the earliest grimoires; it appears in later commentaries and modern practice to describe the personal seal of a specific spirit, drawn in the magician’s blood to seal a binding pact. The core distinction is this: the seal you wield (Command) versus the seal you receive from the spirit (Blood). Confusing the two in ritual can break the circle.
Where Do These Seals Come From? A Historical Timeline
The Seal of Command traces its authority to the ancient Solomonic tradition. The earliest extant grimoire to codify its use is the Clavicula Salomonis (The Key of Solomon), dating to the 14th or 15th century, though its origins claim King Solomon (c. 970–931 BCE). In Book I, Chapter 2, the Pentacle of Solomon is described as a “shield” to be “made of pure brass” and consecrated under a specific planetary hour. This pentacle — the Seal of Command, was later adapted into the Lemegeton Clavicula Salomonis (the Lesser Key of Solomon, c. 17th century) and specifically into the Ars Goetia.
The Seal of Blood has a murkier provenance. The term does not appear in the Goetia as published by Samuel Liddell Mathers (1904) or in Aleister Crowley’s 1904 edition. However, medieval grimoires like the Grimorium Verum (c. 18th century) and the Grand Grimoire (c. 19th century) describe pacts sealed with the magician’s blood, where the spirit’s sigil is drawn on paper and then “baptized” with a drop of blood. The modern phrase “Seal of Blood” likely emerged in 20th-century occult circles, especially among practitioners of the Left-Hand Path, to distinguish the spirit’s personal mark from the magician’s authority device.
Symbolism: What Each Seal Actually Represents
The Seal of Command: Authority and Boundary
The Seal of Command is not an abstract symbol: it is a map of divine order. The hexagram of Solomon, for example, represents the macrocosm, the union of fire and water, the interplay of the four elements and the spirit that governs them. When the magician holds it, they stand as a representative of that order within the circle. The seal says to the spirit: You are in a space ruled by law, not chaos.
Concrete detail: the traditional Key of Solomon specifies that the pentacle be engraved on brass because brass is associated with Venus, a planet of harmony and legitimate authority. It is worn over the heart or placed before the circle. Without it, the grimoires warn, the spirit may not obey, or worse, may assault the magician.
The Seal of Blood: Identity and Obligation
The Seal of Blood is the inverse: it is the spirit’s own signature compressed into a unique geometric figure. In the Goetia, each of the seventy-two demons has a distinct seal. Those seals are not arbitrary; they encode the spirit’s rank, sphere, and planetary correspondence. When the magician traces that seal, whether in ink or in blood, they are not asserting authority but making an invitation bound by a personal cost.
Blood is significant because it carries the magician’s life force and, in occult theory, their astral signature. By offering blood, the magician creates a permanent link between themselves and the spirit. In pact magic, this seals a contract: the spirit provides services, the magician offers prolonged devotion or a future offering. The Seal of Blood thus represents a transaction, not a command.
How Each Is Used in Practice
Preparing the Circle
We draw our circles with care. The Seal of Command is placed on the altar or, in the 17th-century Goetic method, set within the circle itself. According to the Ars Goetia, the magician must “have the Pentacle of Solomon, which is to be made of pure brass, and to be kept in a white silk bag.” It is deployed before any spirit is evoked. It says, Here I am the operator.
Evoking the Spirit
The Seal of Blood, by contrast, is the tool of the second stage. Once the circle is sealed and the invocation recited, the magician places the spirit’s seal (drawn on parchment) inside the triangle of manifestation. This seal gives the spirit a physical “handle” into the material world. In the descriptions of the Grimorium Verum, the magician also anoints the seal with a drop of blood to “vivify” it, to make it active and binding.
Sealing a Pact
This is where the line blurs. A pact is not simply evocation; it is a mutual agreement. Some grimoires require the Seal of Command to be present as the authority behind the pact, while the Seal of Blood is the contract itself. The Grand Grimoire instructs the magician to sign the pact in blood, then fold it with the spirit’s seal and bury it in a specific location. The Seal of Command remains on the person of the magician to maintain control until the pact is finalized.
Seal of Command vs Seal of Blood: A Comparison
| Aspect | Seal of Command | Seal of Blood |
|---|---|---|
| Purpose | Protect and command the magician | Bind and summon a specific spirit |
| Material | Brass, silver, or wood; often consecrated | Parchment; often drawn with ink or blood |
| Origin | Solomonic tradition (Key of Solomon, c. 14th c.) | Later pact grimoires (Grimorium Verum, c. 18th c.) |
| Who possesses it? | The magician | The spirit’s seal, kept by magician |
| Risk of misuse | Weakens the circle, spirit may break free | Permanent spiritual debt, obsession, possession |
| Symbology | Macrocosm, divine order | Microcosm, individual spirit contract |
Common Misconceptions
Misconception 1: The Seal of Blood is always physically drawn in blood. Not necessarily. Many historical grimoires specify virgin parchment and ink. Blood is added only when a pact is intended, not for simple evocation. Modern YouTube occultism has exaggerated its necessity.
Misconception 2: The Seal of Command is the same as the demon’s seal. This confusion is dangerous, and we have seen it in online forums. The Seal of Command is not a demonic sigil; it is a protective symbol. If you place a demon’s seal in the magician’s position, you effectively hand the circle to the spirit.
Misconception 3: You can substitute one for the other. No. The two seals serve opposite functions. Using the Seal of Blood in place of the Seal of Command strips the magician of their authority. Using the Seal of Command to call a specific spirit (without its own sigil) will summon nothing.
FAQ
Can the Seal of Command be used as a spirit seal?
No. It is generic protective talisman, not attuned to any specific entity. It will not call a particular demon.
Do I need to use blood with the Seal of Blood every time?
Only if you intend a pact. For simple evocation, standard ink suffices, according to the Goetia.
Which grimoire first mentions the term “Seal of Blood”?
The exact phrase appears in 20th-century commentary, not in primary medieval sources. Earlier grimoires call it the “seal of the spirit” or “sigil.”
Can a non-practitioner wear the Seal of Command?
The Key of Solomon warns that only the properly purified magician should wear it. Wearing it casually may attract unwanted attention from spirits.
Closing
The Seal of Command and the Seal of Blood are not interchangeable pieces of the same kit. They are two sides of a single operation: one establishes the stage, the other invites the actor. The difference is the difference between safety and vulnerability, between a controlled evocation and a lifelong engagement. For a deeper look at these symbols and how they appear in the seventy-two seals of the Goetia, visit our guide to goetic seals or consult the glossary of sigils and seals. The vertical hub on demonology and the Goetia offers further context on the rituals that use them.