Astrology

What is Astrology?

Astrology is the practice of finding meaningful correlations between celestial configurations and human affairs. Three main lineages carry this tradition: Western astrology, rooted in ancient Babylon and systematized in Hellenistic Egypt; Vedic astrology (Jyotiṣa), developed on the Indian subcontinent with its own technical apparatus; and Chinese astrology, which operates on twelve animal signs and a five-element system. Each lineage is self-contained, with its own zodiac, predictive methods, and cosmological assumptions.

Three traditions

Western astrology uses the tropical zodiac, dividing the year into twelve thirty-degree signs based on the seasons. Its planetary set runs from the seven classical planets through the modern outer planets: Uranus, Neptune, and Pluto. Twelve houses divide the chart into life areas. Vedic (Jyotiṣa) astrology uses the sidereal zodiac instead, aligned to the actual fixed stars rather than the seasons. It adds a system of twenty-seven nakṣatras (lunar mansions) and uses different predictive techniques, notably the daśā system of planetary periods. Chinese astrology operates on entirely different principles. The twelve animal signs, five elements, and sixty-year cycle form a coherent system that shares almost no technical vocabulary with the Western or Vedic traditions. The three are not interchangeable.

What it actually claims

The serious astrological position is as above, so below. This is the Hermetic§ principle of correspondence, applied to the relationship between celestial and human cycles. Astrology does not claim that planets cause events through gravity. It claims that celestial patterns and earthly events run in meaningful coincidence. The practicing astrologer is interested in pattern recognition and timing. Deterministic prediction of specific events is not the mainstream astrological position, even if popular accounts of astrology present it that way.

Astrology vs. adjacent concepts

Astrology is often confused with three other fields: astronomy, generic divination, and mythology. Astronomy studies celestial bodies through physical measurement. The two disciplines were unified until roughly the seventeenth century; since then they have been separate. Divination is a broader category. Astrology is one form of divination, but tarot, rune-casting, and the I Ching draw on different symbol sets and operate by different logics. Mythology shares imagery with astrology — the twelve zodiac signs map to mythological figures — but mythology is a narrative tradition, not a predictive or correlative system. The overlap is etymological and iconographic, not methodological.

In the index

Pam Gregory is the index's most consistent voice on the contemporary Western tradition. Her bi-monthly updates cover major transits in plain English, without relying on jargon. Her work on the Pluto-in-Capricorn period (2008–2024) and the ongoing Pluto-in-Aquarius transit (until 2044) offers some of the clearest explanations in the index of why outer-planet movements are felt collectively, not only individually.