Astrology in Wiccan Practice
Core uses
Astrology, in this tradition, is put to work in four overlapping but distinct applications: spell timing, divination (reading a chart, whether natal or for a specific question, as a source of insight, protection (using astrological correspondences defensively, in warding or shielding work), and self-knowledge (natal-chart work as a tool for understanding one's own tendencies and patterns). A recurring, carefully worded qualifier attaches to all four uses: astrology in this tradition is used for predicting when something is likely to occur, not whether it will occur — a distinction that matters a great deal given the tradition's broader, repeatedly emphasized rejection of a fixed, predetermined future.
The zodiac-as-life-journey metaphor
The governing metaphor used to organize the whole zodiac system is theatrical: houses are the stage (the fixed backdrop, the areas of life — home, career, relationships — where events play out), planets are the actors (the active forces or energies moving through the story), and signs are the costumes (the particular style or flavor a given planet's energy takes on depending on which sign it's passing through at a given time). This three-part metaphor is worth holding onto as a genuine interpretive key rather than a cute mnemonic, since it gives a clear, consistent answer to the perennial beginner confusion about how "sun sign," "house," and "planet" relate to each other: the sign tells you how an energy is being expressed, the house tells you where (in which area of life) it's playing out, and the planet tells you which underlying force is involved.
The above table extends the elemental framework above into a second, parallel timing system based on the classical planetary-hour tradition — the ancient system, predating modern astronomy, that assigns each day of the week to one of the seven "classical" planets (Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn — the seven bodies visible to the naked eye and known before the discovery of Uranus, Neptune, and Pluto), and derives the very names of the days themselves from those assignments in most European languages.
Sunday, ruled by the Sun, governs success, promotion, fame, wealth, and prosperity; its colors are gold and yellow, and its associated deities — Brigid, Helios, Apollo — are all solar figures across different pantheons, which is itself a small demonstration of the "pantheon deities are culturally-particular refractions of the same underlying correspondence" principle established back in Part II/§2.
Monday, ruled by the Moon (the etymological source of the name itself — "Moon-day"), governs illusion and glamour, sleep, peace, beauty, prophecy, dreams, emotion, fertility, and insight; its colors are silver, white, and blue; its deities — Diana, Artemis, Selene, Luna — are all lunar figures, again illustrating the same cross-pantheon-refraction pattern.
Tuesday, ruled by Mars, governs courage, victory, success, strength, defense, and protection; its colors are red, black, and orange; its associated deities are described generally as "Aries-aligned war deities" rather than specific named figures, reflecting Mars's direct rulership over the zodiac sign Aries in traditional astrology.
Wednesday, ruled by Mercury, governs communication, the arts, change, luck, gambling, and creativity; its colors are purple and orange; its deities — Mercury, Hermes, Woden — again demonstrate cross-pantheon refraction (and Woden's inclusion is worth noting specifically, since the English name "Wednesday" itself derives from "Woden's day," making this one of the clearest surviving linguistic fossils of pre-Christian Germanic religion embedded directly into the modern calendar).
Thursday, ruled by Jupiter, governs abundance, protection, prosperity, strength, wealth, and healing; its colors are purple, green, and blue; its deities — Thor, Jupiter, Juno — again show the pattern (and, as with Wednesday/Woden, "Thursday" derives directly from "Thor's day," another Germanic linguistic fossil).
Friday, ruled by Venus, governs love, birth, fertility, romance, gentleness, friendship, and passion; its colors are pink and aqua; its deities are Venus, Aphrodite, and Freya (and, continuing the same linguistic pattern, "Friday" derives from "Freya's day" or, in some etymological accounts, the Germanic goddess Frigg).
Saturday, ruled by Saturn, governs banishing, protection, wisdom, spirituality, and cleansing; its colors are black and purple; its deities are Saturn and Hecate — an interesting pairing that crosses from the Roman pantheon to the Greek specifically for its "dark/wisdom" association rather than a direct Roman-to-Roman match, which is a small but real exception to the otherwise tidy same-pantheon-per-day pattern followed by the other six days.
This day-of-week system functions as a second, independent timing layer that a practitioner is expected to stack alongside the lunar-phase timing tables given later in the outline (Part VII/§23) — a spell for love, for instance, would ideally be timed to both a Friday (Venus's day) and an astrologically and lunar-phase-appropriate moment within that day, for maximum correspondence alignment.
Void-of-course moon
The void-of-course period — the window during which the Moon has finished making all its major aspects (angular relationships) to other planets before it moves into the next zodiac sign — is treated with unusual unanimity across sources as a period during which magical work should generally be avoided. Outcomes attempted during this window are described as unpredictable, or, in Kellerman's memorably blunt phrase, liable to "get sucked into a black hole." Practically, tracking this period requires either a dedicated astronomy/astrology app (the source material specifically names "iLuna") or an annual planetary datebook of the kind published by Llewellyn — a resource also independently recommended, for a related but distinct purpose (day-by-day correspondence tracking generally).