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The Planets in Astrology: The Actors of the Soul


Illustration of astrological planets and their symbolic functions

Planets are one of the 4 pillars of astrology, along with signs, houses, and aspects. Each one describes a function of the person: ego, imagination, intellect, desire, action, fulfillment, responsibility, dream, crisis instinct, and refusal. Their signs, houses, and aspects show how those functions behave, where they appear in life, and how they interact.

Planets move through the zodiac constellations over time and through astrological houses during the day. Their positions at the time of birth determine our birth chart or natal chart.

It's important to note that the term "planet" is used broadly to refer to celestial elements used in astrological analysis, but not all of them are astronomical planets. For example, the Sun is one of the most significant "planets" in astrology, even though it's a star. Similarly, some asteroids or theoretical celestial positions in the sky, like the "Black Moon," are used by many astrologers. On Arcadia, we simplify all these elements under the term "planet" for the sake of simplicity.

The main astrological planets are as follows:

  • Sun: The Sun describes identity, ego, vitality, creative direction, confidence, and the paternal image. Its sign gives the style of the self, and its house shows where the person most needs to become visible.

  • Moon: The Moon, Earth's satellite, describes reaction, imagination, optimism, memory, childhood, the inner child, personal dreams, play, and the maternal image. Its position helps read the images, security reflexes, childhood imprint, and private dream that motivate a person before conscious strategy.

  • Mercury: Mercury is above all the planet of intellect: thought, language, learning, interpretation, and communication. Its position in the birth chart shows how a person thinks, explains, understands, and moves information.

  • Venus: Venus describes affection, attraction, beauty, pleasure, values, relationship style, harmony, and desire. Its position shows how a person loves, chooses, enjoys, and makes life more graceful or desirable.

  • Mars: Mars describes action, anger, courage, sexuality, initiative, competition, conflict, and the ability to move under pressure. Its position shows how a person acts, fights, wants, and takes risks.

  • Jupiter: Jupiter is the planet of fulfillment, confidence, generosity, pleasure, social ease, and group life. Its position shows where a person seeks joy, meaning, abundance, and a life larger than basic survival.

  • Saturn: Saturn describes discipline, limits, time, maturity, responsibility, fear, effort, and structure. Its position shows where life asks for seriousness, endurance, boundaries, and concrete work.

  • Uranus: Uranus describes independence, rupture, originality, invention, technology, rebellion, sudden change, and freedom. Its position shows where a person refuses stale rules and needs a more open form of life.

  • Neptune: Neptune describes dream, image, imagination, popularity, compassion, glamour, projection, collective moods, fog, and inspiration. Its position shows where a person absorbs atmospheres and gives form to what others dream, admire, or project.

  • Pluto: Pluto describes crisis instinct, power, control, sexuality, pressure, danger, hidden motives, survival force, and regeneration. Its position shows where a person meets difficult situations, hidden pressure, danger, and power dynamics.

  • Black Moon: The Black Moon, also known as Lilith, is a calculated lunar point. In Arcadia it describes refusal, taboo, raw authenticity, fascination, and the non-negotiable truth a person may not want to soften into social convenience.

Frequently asked questions

How should I read planets in a birth chart?

Start with their function: the Sun directs, the Moon reacts, dreams, remembers, and carries optimism, Mercury thinks, Venus desires, and Mars acts. Then add the sign, house, and aspects.

Which planets should I read first?

For a personal reading, begin with the Sun, Moon, Mercury, Venus, and Mars, then add Jupiter, Saturn, and the generational planets.

Why do aspects matter for planets?

Aspects show how planetary functions cooperate or create tension. They keep each planet from being read as an isolated trait.

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Use this article with a chart, a method, or a public example rather than reading it as an isolated definition.