Lunar Nodes
The Lunar Nodes are the two points where the Moon's orbit crosses the ecliptic, the apparent path of the Sun. The North Node, called Rahu in Vedic astrology and the Dragon's Head in Western tradition, is where the Moon crosses from south to north. The South Node, called Ketu or the Dragon's Tail, is the opposite point. The Nodes are not physical bodies but mathematical points, and they describe the karmic axis of the chart, the territory of soul direction, the past being released and the future being entered.
Origin
The lunar nodes were known to Babylonian astronomers as essential for predicting eclipses, since solar and lunar eclipses occur when the Sun and Moon are conjunct or opposite at or near a node. The Babylonians tracked the eighteen-year cycle now called the Saros cycle, which depends on the precession of the nodes. Hellenistic astrology adopted the nodes from Babylonian astronomy and used them in interpretive astrology, though their full development as karmic indicators came through the transmission to and from Indian astrology. The Indian tradition gave the nodes their richest mythological elaboration as Rahu and Ketu, the head and tail of the demon serpent that swallows the luminaries during eclipses.
In medieval Arabic astrology the nodes were called the Dragon's Head and the Dragon's Tail, names that returned to Europe with the Latin translations. William Lilly used the nodes in horary astrology, treating the North Node as benefic and the South Node as malefic. With the rise of psychological astrology in the twentieth century, particularly through Dane Rudhyar and Martin Schulman, the nodes came to be read as the karmic axis: the South Node as past life accumulation and current comfort zone, the North Node as the soul direction of the present incarnation, the territory the soul has come to enter. This interpretation now dominates Western evolutionary astrology.
Meaning and function
The lunar nodes form an axis: wherever the North Node is, the South Node is exactly opposite. The North Node by sign and house describes the territory the soul has come to enter, the unfamiliar ground that produces growth, the qualities the soul is developing. The South Node describes the territory the soul knows from the past, the comfortable patterns and gifts already developed, the place where it is easy to retreat. The work of the nodal axis is not to abandon the South Node but to draw on it as resource while moving toward the North Node, integrating both into a complete life. The North Node always feels effortful and unfamiliar; the South Node always feels easy and known.
The nodes by sign describe the elemental quality of the karmic axis. North Node in Aries, South Node in Libra, calls for developing autonomy and direct self-assertion while releasing dependence on partnership for identity. North Node in Cancer, South Node in Capricorn, calls for developing emotional life and family connection while releasing identification with public role and achievement. North Node in Gemini, South Node in Sagittarius, calls for developing close attention and listening while releasing the certainty of philosophical answers. The nodes by house describe the life territory in which this work plays out. The full transit cycle of the nodes through the zodiac takes approximately eighteen and a half years, with each node spending about a year and a half in each sign, moving in retrograde direction through the zodiac.
In practice
In your natal chart, find the North Node, often marked with a horseshoe-like symbol opening upward, and the South Node opposite it, opening downward. The signs and houses of the nodes describe the karmic axis. The ruler of the North Node and the ruler of the South Node, by their placements, describe the practical paths of integration. Aspects to the nodes from natal planets bring those planetary functions into the karmic work. Conjunctions to the nodes are particularly significant: a planet conjunct the South Node is a strong gift from the past being released; a planet conjunct the North Node is a quality being claimed and developed.
Common configurations include the Sun conjunct the North Node, a strong sense of soul direction and identity aligned with growth; the Sun conjunct the South Node, gifts from the past that must not become an excuse to avoid growth; the Moon conjunct the North Node, emotional life pointing toward the new direction; Saturn on the nodal axis, serious karmic responsibility. Transits to the nodes, especially eclipses on or near the natal nodes, are felt as significant turning points, often with karmic flavour. The nodes return to their natal positions every eighteen years and seven months approximately, marking nodal returns at ages 18, 37, 55, 74, each a major karmic threshold. To work with your nodes, identify what comes easy from the South Node and what calls you forward from the North Node, and begin to lean toward the unfamiliar.
Symbolic depth
The lunar nodes are the dragon, the great serpent that swallows the Sun and the Moon during eclipses. The North Node is the head, hungry, devouring, the future being eaten into existence; the South Node is the tail, releasing, surrendering, the past being let go. The nodes mark the soul axis, the deep direction of the present incarnation, often called the path of dharma in the Indian tradition. In the tarot, the nodal axis resonates with The Wheel of Fortune, card ten, the great cycle of incarnation in which the soul moves from past to future, and with Death, card thirteen, the necessary release of the South Node patterns that no longer serve.
In Vedic astrology the nodes are called Rahu (North) and Ketu (South) and are considered shadow planets, deeply karmic, often given more weight than any physical body. Rahu represents worldly desire and the new territory the soul is hungry for; Ketu represents detachment and the spiritual gifts already accomplished. In Western evolutionary astrology, especially the work of Jeffrey Wolf Green and Mark Jones, the nodes are central to soul-level interpretation. The nodes ask you to recognise the deep direction of your soul, to lean into the unfamiliar territory, and to honour the gifts of the past without letting them become a cage. Continue through the glossary or build your natal chart.
Also known as
- Nodes of the Moon
- Rahu and Ketu
- Dragon's Head and Tail
- Karmic Axis
- North Node and South Node