Rahu is a masculine name of Sanskrit origin, derived from the root रभ् (rabh), meaning "to take hold, to clasp" or "to seize." In Hindu mythology and astrology, Rahu is the name of the ascending lunar node, personified as a demon (asura) who causes eclipses by swallowing the Sun and Moon. As one of the nine major celestial bodies (navagraha), Rahu is considered a shadow planet with no physical form but immense astrological influence.
Etymology and Meaning
The name Rahu is linguistically connected to the act of seizing or grasping, reflecting its mythological role as a demon that captures the Sun and Moon. According to Hindu texts, Rahu is the severed head of a demon who disguised himself as a god to drink the elixir of immortality (amrita). The Sun and Moon reported his deceit, and the god Vishnu beheaded him, but since he had already consumed the elixir, his head became immortal, eternally chasing the Sun and Moon to take revenge—thus causing eclipses.
Astrological Significance
In Hindu astrology, Rahu and its counterpart Ketu (the south lunar node) are always 180 degrees apart in the sky, completing an orbital cycle of approximately 18 years. Together, they are known as shadow planets despite lacking physical existence. Rahu is considered malefic and is associated with worldly desires, obsessions, and sudden events. The time period known as Rahu kāla (occurring daily for about 90 minutes) is considered inauspicious for starting important activities. Notably, the mathematical node has no physical location, yet its astrological effects are calculated based on the Moon's orbital precession.
Mythological Context
The story of Rahu originates in the legend of the churning of the cosmic ocean (Samudra Manthana). The asura Svarbhanu (also called Rahu) drank the elixir of immortality secretly. To prevent him from becoming fully immortal, Vishnu decapitated him, but his head and tail became the two nodes. In some versions, the tail is identified as Ketu. Rahu is invoked in exorcism rituals and is believed to rule over illusion, unpredictability, and material success.
Cultural Impact
Rahu is a common figure in Indian art and sculpture, often depicted as a dark serpent or a bodiless head riding a chariot drawn by eight black horses. The name has been used in modern culture, including in literature and film, sometimes as a metaphor for a disruptive force. In both Hindu astrology and Indian astronomy, Rahu stands as a powerful symbol the invisible forces affecting human life.
- Meaning: "Seizer" (from Sanskrit rabh)
- Origin: Hindu mythology and astrology
- Type: First name
- Usage: Hindu
Sources: Wikipedia — Rahu