The figure of Carcer in geomancy is a seal of weight and silence. It is the sign of enclosure, the lines fixed, unmoving, without breath. Saturn rules this figure with Capricorn, Earth, and the feminine polarity as its domain. Its meaning in Latin is simple and absolute: a prison, bound. In some traditions Carcer is joined not only to Saturn in his direct course but especially to his retrograde motion, since the return upon himself seals the lines inwards. There are schools that also tie it to Pisces, by its chain to the twelfth house and the bondage of hidden waters.

Saturn now stands retrograde in the anaretic degree of Pisces within his own Egyptian bound. This is the seal of completion, where the weight of the world becomes cage, the bondage of souls beneath the dominion of the Demiurge. The prison of the unconscious reveals itself as the house of the Cacodaimon, the place of shadows that rise in their appointed hour. The gospel of Luke speaks of this law in another tongue: nothing is hidden that shall not be revealed, nor secret that shall not be made known.
I. Saturn and the Geometry of Carcer
Carcer belongs to Saturn. The planet of boundary, weight, and time is reflected in the geomantic figure where nothing flows. The sign of Capricorn confirms the image, the Earth that holds fast, the feminine that receives and fixes. The quality is Binah, the Great Mother of the Tree, who gives form by containment.
Thus Carcer can be read in two directions: in the low reflection, it is the cage of the Demiurge, the dragon of time folding upon itself, the enclosure that denies the soul its breath. In the high reflection, it is the maternal vessel, the matrix that preserves the seed until its moment. What imprisons in the world below is what gestates in the world above. The same seal, seen with different sight, is exile or is womb.
II. Saturn Retrograde in Pisces
The present sky intensifies the figure. Saturn stands retrograde in the final degree of Pisces, the last of the zodiac, the Egyptian bound of Saturn itself. This is the seal of conclusion, where the cycle closes and the waters of dissolution fold back upon themselves. The retrograde motion draws the force inward, making the prison an interior weight, the bondage not only in the world but also in the psyche.
The very geomantic figure of Carcer has been tied to Saturn retrograde, since the return of the planet upon itself mirrors the fixed lines of the prison. In some traditions this is also tied to Pisces, through its affinity with the twelfth house and hidden captivity.
Pisces is attached to the zodiacal house of the Bad Spirit, the twelfth, domain of isolation, hidden enemies, the bondage of the unconscious. In this place Carcer manifests with full force. The sea that should open to the Spirit becomes a wall of water. The unconscious does not liberate but binds. The twelfth becomes a cavern where the voices of fate resound and the soul believes it is lost. But the anaretic degree is also the edge of dawn. From this last degree the Sun enters the sign of Aries, the fiery rising of a new cycle. The cage at the end of Pisces is also the place where the Rose waits to pierce the veil from the East.
III. The Hidden and the Revealed
The gospel of Luke speaks with the same symbol. No one lights a lamp and hides it under a vessel. Nothing is hidden that shall not be revealed, nor secret that shall not be made known. This is the law of the twelfth house. The prison conceals, yet only until the time when revelation comes. The hidden is drawn upward, not through human effort but through the demand of the Logos itself.
The image of the lamp under the vessel is the image of Carcer. The vessel is the limit, the containment. The lamp is the spark of Spirit. When the vessel serves only to cover, the lamp is buried and the vessel becomes a prison. When the vessel serves to lift the flame, it is candlestick and womb. Thus the twelfth house holds both meanings. It is the place of shadows and of revelation, of exile and of the return. The bondage of souls is temporary. What lies in the cavern is destined to rise to the surface. The Demiurge binds, but the gnosis unmasks. The cage of Saturn is real, but within it lies the secret of liberation.
Fiat Lux.