The Moon

The Moon is the other luminary, the light of the night chart, and the fastest body in the traditional seven. She changes sign about every two and a half days. She does not retrograde. In a birth chart the Moon describes the body, memory, hunger, the way feeling arrives, the private habit of care, and the public mood of a moment. She is the great timer of the month. Lunations, the New and Full Moons, are her conversation with the Sun.

Traditional topics include mothers in many older texts, the populace, travel by water, silver, and the stomach or the fluids of the body in medical correspondences this library does not use as advice. A Moon placement is a style of need and of fluctuation. It is not a medical chart and it is not a verdict on a parent. Older books that signify the mother by the Moon are using one traditional pointer. The whole chart, including the fourth house and its ruler, belongs in that conversation.

The Moon rules Cancer and only Cancer. In that cardinal water sign she is in domicile: shelter, tide, and the beginning of care are her own weather. She is exalted in Taurus, classically at 3 degrees, an honored guest in fixed earth, where feeling trusts what it can touch, eat, and repeat. She is in detriment in Capricorn, opposite Cancer, where public structure and saturnine cold ask the tide to justify itself as a duty. She is in fall in Scorpio, opposite her exaltation, where fixed water wants a binding truth and the Moon's changing nature has a poorer fit. Those conditions describe craft. They do not describe a person as damaged.

In the system of joys, the Moon rejoices in the third house, the place of messages, siblings, and short roads. Joy is not domicile. The natural house that shares her topics of home and root is the fourth, Cancer's house, an angle of the chart. A Moon in the fourth is at home in the place as well as, sometimes, in the sign. A Moon in the tenth is a private luminary in a public place, and the birth time is what puts her there.

Sect: the Moon belongs to the night team, with Venus and Mars. In a chart cast after sunset she is in sect, and her testimonies are more at ease. In a day chart she is out of sect, still essential, and sometimes more exposed. The Sun and the Moon divide the day between them. A reading that ignores which light has the sect advantage is reading with one eye closed.

Because she moves so quickly, the Moon is also a transit timer. A natal Moon describes a lifelong style. A transiting Moon describes a couple of days of weather, a mood passing over the natal planets she touches. Do not give a two-day transit the weight of the natal placement. Do not ignore it when you are asking what this week feels like.

The phase matters too. A waxing Moon is a light that is growing. A waning Moon is a light returning what it held. The angle between natal Sun and natal Moon is a quieter fact than the sign, and it is still a real one.

In practice, give the Moon one line about safety: what this chart treats as familiar, and how fast that answer changes. Then read her sign, her house if you have the time, and her aspects to the Sun and Venus. For the domicile, read Cancer. For the exaltation, read Taurus.