Hindu Mythology-14

Answer:

Asura – Rahukethu

Story:

Lord Indra, the King of Devatas, while riding on an elephant, came across a sage named Durvasa who offered him a special garland. Lord Indra accepted the garland and placed it on the trunk of the elephant. The elephant was irritated by the smell and it threw the garland on the floor. This enraged the sage as the garland was a dwelling of Sri (fortune) and was to be treated as prasada. Durvasa Muni cursed Lord Indra and all devas to be bereft of all strength, energy, and fortune. In battles that followed this incident, Devas were defeated and Asuras (demons) led by king Bali gained control of the universe. Devas sought help from God Vishnu Who advised them to treat asuras in a

diplomatic manner. Devas formed an alliance with asuras to jointly churn the ocean for the nectar of immortality and to share it among them. However, Lord Vishnu told Devas that He would arrange that they alone obtain the nectar.

The churning of the Ocean of Milk was an elaborate process. Mount Mandarachala, also known as Mount Meru, was used as the churning rod, and Vasuki, the king of serpents, became the churning rope. The demons (asuras) demanded to hold the head of the snake, while the demigods (devas), taking advice from Vishnu, agreed to hold its tail. The Samudra Manthan process released a number of things from the Milk Ocean. At last, Dhanvantari - the Divine Physician appeared with a pot of Amrita (nectar of immortality) in his skilful hands. Fierce fighting ensued between devas and asuras for the nectar. 

To protect the nectar from Asuras, the divine Garuda took the

pot, and flew away from the battle-scene. While Garuda was in his flight over planet Earth, it is believed that four drops of nectar fell at four places - Prayag (Allahabad), Haridwar, Ujjain and Nasik. This legend is the basis for the belief that these places acquired a certain mystical power and spirituality. However, Rahu, one of the Asuras, eventually got hold of the nectar and started celebrating. Frightened, devas (demigods) appealed to Vishnu, who then took the form of Mohini. As a beautiful and enchanting damsel, Mohini distracted the asuras, took the amrita, and distributed it among the Devas, who drank it. 

Asura RahuKetu , disguised himself as a deva and drank some nectar. Due to their luminous nature, the sun god Surya and the moon god Chandra noticed the switching of sides. They informed Mohini. But before the nectar could pass his throat, Mohini cut off his head with her divine discus, the Sudarshana Chakra. But as the nectar had gone down his throat he did not die. From that day, his head was called Rahu and body was called ketu who became planets later.

It is believed that this immortal head from time to time swallows the sun, causing eclipses. Then, the sun passes through the opening at the neck, ending the eclipse. The body also turned into Ketu due to a boon, and it in turn swallows the moon on timely basis to cause a lunar eclipse.

Astronomically, the Moon in its orbit, on a northerly course from South to North, crosses the ecliptic (the apparent path of Sun). This point of intersection is known as Rahu or "Dragon's head". 180 degrees away from this point, the Moon on its southerly course crosses the ecliptic. This point is called "the dragon's tail" or Ketu. Thus, Ketu and Rahu denote the points of intersection of the paths of the Sun and the Moon as they move around the celestial sphere. Therefore, Rahu and Ketu are respectively called the north and the south lunar nodes. The fact that eclipses occur when the Sun and the Moon are at one of these points is explained in stories as the swallowing of the Sun and the Moon by the demon snake. Thus, Rahu and Ketu do not have physical identity but only

mathematically calculated sensitive points. The Rahu and Ketu points are not stationary in space but have a mean motion of about 19 degrees and 30 minutes in a year.