Ose sigil (seal) — Ars Goetia demon

Ose

«Oso, Voso»
President · 3 legions

⤓ Download the seal: SVG · PNG CC0

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Ose is a President of the Ars Goetia, ruling 3 legions of spirits.

Key facts

RankPresident
Legions3
PowersKnowledge & sciences, Divination, Transformation
Enn (modern chant)«Ayer serpente Ose»
Alternate namesOso, Voso
SourcesArs Goetia, Pseudomonarchia
Seal no.57 / 72
Cardinal kingAmaymon · South (S)

On this page

How it appears

A leopard who then takes the form of a man.

Ose
Artistic reconstruction after the source's description · modern illustration, not a historical facsimile.

What you ask of it

He makes one skilled in the liberal arts, gives true answers concerning divine and secret things, and transforms a man into whatever form the magician desires, making him believe that he is truly that thing.

Provenance

Ose appears in Weyer as Oze, within the catalogue reorganized by the Ars Goetia. The Lemegeton preserves his main traits: initial leopard form, answers concerning divine and secret matters, and the power to alter a person's perception. Already attested in the Livre des Esperitz (15th c.) as «Oze (f182v)» and in the Liber Officiorum Spirituum (Folger V.b.26, 16th c.) as «Oze (no. 9)».

The seal: printed edition and facsimile

Ose's main seal follows the printed Mathers–Crowley (1904) form; the Sloane MS 2731 manuscript facsimile is shown separately for comparison.

Seal  — Ose, Manuscript variant · Sloane 2731Manuscript variant · Sloane 2731
Seal  — Ose, Ars GoetiaVector seal · Mathers–Crowley (1904)

⤓ SVG · PNG

The main image and SVG/PNG downloads reproduce the printed form of S. L. MacGregor Mathers and Aleister Crowley's 1904 edition, using the normal vector pack documented on Wikimedia Commons (public domain/CC0). The Sloane MS 2731 facsimile remains separate for comparing manuscript variants; it is not used as the main image.

The FULL manuscript facsimile («Lemegeton, Clavicula Salomonis», Sloane MS 2731) is in our library; the original is held at the British Library (Sloane MS 2731).

How it is summoned

In antiquity

According to the Ars Goetia, the operation is the same for all 72 spirits:

  1. The magician draws the magic Circle and never steps out of it during the whole work.
  2. A few paces away he draws the Triangle of Art: there, and only there, must the spirit manifest.
  3. On his breast he wears the lamen bearing the demon's seal, engraved in metal.
  4. He recites the conjurations, calling it by its names and by the divine names.
  5. If the spirit resists or delays, the constraint and the 'chain of spirits' are used.
  6. Once the request is granted, he gives it the license to depart, and never before.

No direction, timing, obligatory offering, or individual ritual caution is recorded for Ose.

Source: Ars Goetia (17th c.); already in Weyer's Pseudomonarchia Daemonum, 1577, as Oze

The common Goetic operation also adds, when needed: to constrain a resisting spirit (Wellcome MS 110, c74–c78), to show it the Pentacle of Solomon once manifested (Ars Theurgia-Goetia), to work in its planetary hour and day (by rank), and finally to give it licence to depart —and never before (Wellcome MS 110, c53). Practise the full rite at The Practitioner's Table.

What is the “chain of spirits”?
It is the Ars Goetia's general curse (Catena Spirituum) against a spirit that rebels or will not appear: not a list of spirits, but a coercive formula added at the end of the conjurations. It curses the spirit and strips it of “its office, joy and place”, binds it “in the bottomless pit”, and calls all heaven —the Sun, Moon and stars— to curse it “into the fire unquenchable”. Its physical act: putting the spirit's name and seal in the brass box, “chained and bound up”, to be choked in sulphurous smoke and burned in material fire until it obeys. Read it in full in our Goetia (Sloane 2731).

Modern · not ancient

  1. Print or draw its seal and place it before you on a clean surface.
  2. Light a candle and, if you wish, some incense; still your mind and set your intention.
  3. Intone its enn softly and repeatedly, eyes on the seal, until you feel a shift in the air.
  4. State your request clearly and respectfully, not as a command.
  5. Give thanks, let the candle burn down a little and close; modern practice is devotional, with no coercive conjuration.

Enn (modern chant): «Ayer serpente Ose»

Source: Enn of modern demonolatry (lists circulated by S. Connolly and Valerie Corban; tradition collected in The Complete Book of Demonolatry, 2006)

The modern chant is commonly used in practices of invocation or meditation, without authority in the ancient Solomonic rite.

Modern experiences (personal gnosis)

In modern demonolatry, practitioners describe Ose's presence as an intense, dense, and constricting energy, often perceived as a heavy physical pressure that demands absolute focus. He is considered a secretive and highly rigorous spirit who tests the invoker's mental stability through relentless psychological transformation. He is typically worked with to unveil hidden truths, radically alter personal perception, and develop technical or analytical skills.

Personal gnosis (UPG): how contemporary practitioners say they experience it. This is subjective experience, not a historical source or doctrine; it does not come from the ancient grimoires and may not be real.

Source: S. Connolly, «The Daemonolatry Goetia» (2010) y testimonios de la práctica moderna.

Open in the search → See all 72 spirits ⚗ Practice the ritual

Frequently asked questions

Who is Ose?

Ose is one of the 72 spirits catalogued in the Ars Goetia (the first book of the Lemegeton, 17th c.) and in Weyer's Pseudomonarchia Daemonum (1577); it is listed with the rank of President. It is not a deity or a biblical figure: it is an entry in these historical spirit-catalogues.

What is the sigil (seal) of Ose?

The seal image of Ose that we display and offer for download follows the printed Mathers–Crowley (1904) form, using the normal vector pack documented on Wikimedia Commons (public domain/CC0). The Sloane MS 2731 manuscript facsimile is provided separately because Lemegeton witnesses preserve variants.

What is Ose's rank in the Ars Goetia?

Ose is a President, ruling 3 legions of spirits according to the Lesser Key of Solomon.

How do you summon Ose?

According to the ancient sources (the Lemegeton, the Pseudomonarchia Daemonum), Ose is summoned with the goetic rite: the Circle and the Triangle of Art are traced, its seal is engraved and worn, the candles are lit and the conjuration is spoken by the divine names; if it delays, it is constrained, and at the end it is given the licence to depart. This is historical-documentary material, not a how-to for real summoning.

What does Ose do? What is it invoked for?

He makes one skilled in the liberal arts, gives true answers concerning divine and secret things, and transforms a man into whatever form the magician desires, making him believe that he is truly that thing.

What sources does Ose come from?

Ose appears in Weyer as Oze, within the catalogue reorganized by the Ars Goetia. The Lemegeton preserves his main traits: initial leopard form, answers concerning divine and secret matters, and the power to alter a person's perception.

What is the enn (chant) of Ose?

The enn of Ose circulating today is «Ayer serpente Ose». It is a MODERN demonolatry chant (late 20th c.); it does not appear in the old grimoires.

Of the same rank · President

Amy President · 36 legionsValac President · 38 legionsMarbas President · 36 legionsBuer President · 50 legions

Of the same power · Knowledge & sciences

Orias Marquis · 30 legionsVapula Duke · 36 legionsZagan King · 33 legionsAndrealphus Marquis · 30 legions

→ Where does «your demon by birthdate» come from? See how the different systems distribute the 72 spirits: Goetia Correspondences.

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