The Moon

The chart's inner tide

The Moon is the second light of astrology and the first thing it ever watched. She stands in the chart for the life that happens daily and bodily: emotion, instinct, appetite, habit, memory, need, the whole felt texture of existence beneath the biography. Where the Sun describes who a person is becoming, the Moon describes how it feels to be them on a Tuesday, what comforts them, how they were mothered and how they mother themselves. She changes sign every two and a half days, and everything cyclical answers to her: moods, tides, months, the body's rhythms. Astrologers of every era have read her condition first when judging the temperament, and the oldest tradition of all agreed.

Sin: the Moon who came first

In Babylon the Moon opened everything. Sin, the moon god, lord of the city of Ur, father of the sun god Shamash, headed every list: the great omen series Enuma Anu Enlil gives him its first twenty-two tablets, appearances, halos, horns and the dreaded eclipses, before the sun, weather and stars take their turns, as this compendium's Babylonian pages show. The calendar began with his crescent, sighted each month by watchers whose reports survive; the eclipse watch that could trigger the substitute king ritual was his; the Lunar Six timings that fill the astronomical diaries measured his horizon moments for six centuries. Astrology's instinct that the Moon is where reading begins is not a modern sentiment; it is the oldest procedure in the craft.

Luminary of the night

With the Sun, the Moon forms the luminaries, the two lights set apart from the five wanderers: each rules one sign only, and together they anchor the old doctrine of sect. A chart cast by night belongs to the Moon's party, with Venus and Mars as her teammates; by day, to the Sun's. Her single rulership is Cancer, the sign of home, tide and care, mirroring the Sun's Leo next door, the two lights holding the summer heart of the wheel from which the rulership scheme fans out by planetary speed. Her exaltation is Taurus, at the third degree, by the Babylonian scheme of secret places: the changeable light steadied on the firmest ground, proverbially the calmest placement in the zodiac. The mirrors complete her doctrine: detriment in Capricorn, where feeling is taxed by cold structure, and fall in Scorpio, where it is pressurised past its need to ebb and flow.

Phases: the visible curriculum

Alone among the planets, the Moon performs her whole cycle in public. New moon, waxing crescent, full, waning dark: a monthly curriculum of beginning, building, culminating and releasing that every agricultural and ritual calendar on earth has kept. Natal astrology reads the birth phase, the angle between Sun and Moon at birth, as a temperament in itself: new-moon people start, full-moon people relate and culminate, balsamic souls finish and hand over. Electional astrology times beginnings by her waxing and endings by her wane; horary reads her applying aspects as the story's next events; and the eight-phase scheme that modern lunar practice uses descends directly from Babylonian and Hellenistic month-division. The nodes where her path crosses the Sun's, and eclipses are born, have their own page in the nodes and points library.

The Moon in signs, houses and aspects

The Moon's sign is the fastest-recognised placement in astrology: it describes how feeling moves and what comfort means. Fire Moons metabolise emotion as action, earth Moons as routine and touch, air Moons as conversation, water Moons as immersion. Her house shows where the tides run strongest, where life stays domestic, changeable and deeply felt whatever the topic. Aspects tell how easily the inner weather is lived with: Moon-Saturn learns early to ration need; Moon-Jupiter feels in generous weather; Moon-Mars runs hot and fast; Moon-Neptune feels the whole room. And because she moves so fast, the Moon is the chart's trigger: transits and eclipses deliver on her schedule, and no election is judged without her. The monthly lunar return, her homecoming to the natal degree, gives lunar astrology its rhythm of review.

Silver, Monday, the body's tides

The Moon's chain of correspondences is domestic and everywhere: silver among metals, pearl and moonstone among gems, white things, sea creatures, and Monday, moon-day still in most European languages, among the days of the planetary week. In the zodiacal body she governs the breast and stomach, the organs of nourishment, and the fluids with their tidal chemistry; traditional medicine timed treatment by her sign and phase and avoided operating on the body part her sign occupied, a practice whose Babylonian roots the micro-zodiac page documents. Her gods kept their thrones across every transmission: Greece's triple Moon, Selene of the chariot, Artemis of the crescent, Hecate of the dark, Rome's Luna and Diana, and Egypt's Khonsu and Thoth counting the months.

Chandra: the Moon supreme

Indian astrology gives the Moon the highest honours of any tradition. As Chandra he is the mind itself, manas, the mother, the public, the tides of wellbeing; a chart is read from the Moon's position as a second ascendant, and his condition outweighs almost everything. His mansion at birth, the janma nakshatra, names the child, sets the temperament and starts the Vimshottari dasha clock, as the nakshatras library describes: the twenty-seven mansions are mythically his twenty-seven wives, visited nightly around the month. Where Western popular astrology asks your sun sign, Jyotisha has always asked your Moon, and the difference in emphasis is the two traditions' whole psychology in miniature.

The modern Moon

Psychological astrology made the Moon its deepest instrument: the emotional matrix, attachment pattern, the internalised mother, the inner child, what security means and how it is unconsciously sought. The moon sign is now the second thing moderns learn about their chart and often the first they recognise as accurate, precisely because it describes the self one feels rather than the self one presents. The reading is new; the insight is not. Four thousand years after Sin's crescent opened the Babylonian month, the craft still begins where the light changes fastest, closest to home.

How to read this page

The cards above give the luminary's twelve facets: her Babylonian priority, classification, dignities, core meaning, phases, speed, correspondences, body, and her Vedic, Greek and modern faces. For her sign, see Cancer in the signs library, and Taurus for her exaltation; for her nodes, the nodes and points library; for the deep history, the Babylonian pages on the omen series and the diaries. The Moon and her nine companions are part of the Tarot Academy compendium in all fifty-two languages.