The South Node, called Ketu in Vedic tradition, is the mathematical point opposite the North Node — the intersection where the Moon's orbit crosses the ecliptic plane heading southward. In astrology, the South Node represents what your soul brought into this lifetime: inherited patterns, mastered skills from past lives, and the comfort zone that can also become a trap if you over-rely on it.
The South Node is always exactly 180 degrees opposite your North Node. Together they form the Nodal Axis. If your North Node is in Aries (developing independence), your South Node is in Libra (over-developed in relationship harmony). The South Node represents what you already know how to do — often too well. Growth requires releasing some of that comfort to develop the qualities of the North Node.
South Node in fire signs (Aries, Leo, Sagittarius) brings inherited assertiveness, creative confidence, or philosophical certainty — sometimes to the point of avoidance of intimacy or details. South Node in earth (Taurus, Virgo, Capricorn) brings inherited steadiness, practicality, or structure — sometimes to the point of rigidity.
South Node in air (Gemini, Libra, Aquarius) brings inherited intellect or relational skill — sometimes to the point of avoiding depth. South Node in water (Cancer, Scorpio, Pisces) brings inherited emotional depth — sometimes to the point of merging or isolation.
Under stress, we retreat to the South Node — it's familiar, mastered, and comfortable. But the growth your soul came here for lies in the opposite direction. Recognizing your South Node pattern is the first step in choosing the North Node consciously. Most repeating life patterns trace back to over-reliance on South Node behavior.