Astrology

What does a moon sign mean?

What the Moon stands for in astrology, how the sign's element colours that reading, and where Lilly (1647) gives it dignity or debility.

Short answer

In astrology, your moon sign describes how the Moon's themes are read in your chart: emotions, instincts, habits, memory and the need for security. The sign adds a style, which some astrologers read through its element: fire, earth, air or water. These meanings come from astrological tradition, not from anything measured in the sky.

On this page
  1. What does the Moon stand for in astrology?
  2. How does the sign change the meaning?
  3. Where is the Moon strong or weak, according to Lilly?
  4. What this means for your day
  5. Questions people ask
  6. Sources

A moon sign is read in two layers: what the Moon stands for in a birth chart, and the style the sign adds to it. The Moon's position at your birth is a measured fact. What it means is a reading from astrological tradition.

What does the Moon stand for in astrology?

In Western astrology, the Moon's themes are emotions and instincts. Wikipedia's summary of the tradition, drawn from astrology handbooks by Jeff Mayo, Sasha Fenton and others, links the Moon with:

  • intuition, emotions, moods and instincts
  • unconscious habits, rhythms and memories
  • the ability to react and adapt to people around you
  • for some astrologers, the mother, nurture, home, security and early childhood

Other traditions read it in their own way. In Indian astrology, the Moon is called Chandra and represents the mind, queenship and mother.

A crescent inside a ring of four soft arcs in different tones, one arc a little brighter
Illustration: NinePath

How does the sign change the meaning?

In astrology, the signs are held to represent "characteristic modes of expression". So a moon sign is read as the Moon's themes expressed in that sign's way. One way in is the sign's element: some astrologers begin reading a birth chart with the balance of elements, especially in the Sun and Moon.

Table 1 · Moon signs by element, with element keywords from Arroyo (1989) and Hone (1978)
ElementMoon signsKeywordsIn a day
FireAries, Leo, SagittariusAssertion, drive, willpowerAct on one clear feeling
EarthTaurus, Virgo, CapricornPracticality, caution, material worldTend one practical need
AirGemini, Libra, AquariusCommunication, socialization, conceptualizationTalk one feeling through
WaterCancer, Scorpio, PiscesEmotion, empathy, sensitivityNotice what you feel first

For example, a Moon in Taurus puts the Moon's themes next to the earth keywords: practicality, caution and the material world. Each sign also has a mode, cardinal, fixed or mutable, which some astrologers combine with the element.

Where is the Moon strong or weak, according to Lilly?

William Lilly's Christian Astrology (1647) judges "the strength, fortitude or debility of the Planets" partly by sign, which he calls essential dignity. On his page on the Moon, she has Cancer as her house and Capricorn as her detriment, is exalted in Taurus and has her fall in Scorpio. Capricorn and Scorpio are the signs opposite Cancer and Taurus.

Table 2 · The Moon's dignities and debilities by sign, from Lilly's Christian Astrology (1647)
ConditionSignIn Lilly's table
House (rulership)CancerDignity, scored 5
ExaltationTaurusDignity, scored 4
DetrimentCapricornDebility, scored 5
FallScorpioDebility, scored 4

These labels describe the Moon's standing in a chart, not a verdict on a person. Lilly also counts strength that comes "Accidentally", such as a planet being angular, so the sign is one part of the reading.

What this means for your day

For your day

Do

Read your moon sign next to your sun and rising signs, not on its own.

Don't

Don't read a Moon in fall as a verdict on your feelings.

Questions people ask

Does the house of the Moon matter too?

In Lilly's 1647 scheme, yes. He scores a planet's house as an accidental fortitude, separate from its sign, and gives the most to the Ascendant (1st) and Midheaven (10th) houses.

Is a Vedic moon sign read the same way?

Not always. Vedic astrology reads the Moon as the mind and uses the sidereal zodiac, so the Moon can also fall in a different sign from a Western chart.

Sources

  1. Wikipedia: Planets in astrology. The Moon's traditional associations, its rulership of Cancer and exaltation in Taurus, and its reading in Indian astrology.
  2. Wikipedia: Astrological sign. Signs as modes of expression and the element keywords.
  3. Wikipedia: Essential dignity. The table of rulership, detriment, exaltation and fall from William Lilly's Christian Astrology (1647).
  4. William Lilly, Christian Astrology (London, 1647), p. 80 (the Moon's house, detriment, exaltation and fall), pp. 101 to 103 (essential and accidental strength) and p. 115 (table of fortitudes and debilities). Scan of the 1647 edition on the Internet Archive.
  5. Wikipedia: Sidereal and tropical astrology. The sidereal zodiac used in Vedic astrology.

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