In former days, Srî Râma Chandra suffered very much owing to his being deprived of his kingdom; and, then on account of his wife being stolen away. Subsequently he performed this Navarâtra vow in Kiskindhyâ, his heart being heavily laden with grief.
Though troubled very much, on account of the bereavement of Sîtâ,still Râma Chandra observed the Vow of Navarâtra and worshipped the Goddess according to the prescribed rules and rites.
As a fruit of this worship he was able to bridge the great ocean and kill the giant Kumbha Karna, Meghanâda, the Râvana’s son, and Râvana,the king of Lanka; and subsequently he was able to recover his Sîtâ.He installed Vibhîsana on the throne of Lanka and at last returned to Ayodhyâ and reigned there without any enemies.
Râma Chandra, of incomparable prowess, was able to obtain happiness in this world on account of the influence of this Navarâtra ceremony.
Narada said,"O Descendant of Raghu! I am now telling how that Râvana can be killed. Perform, in this very month of Âs’vin, the vow with devotion.
"Fasting for nine nights, the worship of the Bhagavatî, and repeating the Mantram silently and performing the Homa ceremony, observing all the rules, will certainly fulfill one’s all the desires."
Then the powerful Bhagavân Hari, hearing all from the Muni, believed them to be true; and, on the approach of the month of Âs’vin, prepared the altar on the top of a hill and placed the Auspicious Goddess, the World Mother and, observing all the rules, performed the vow and worshipped the Goddess.
Fasting for nine days, Râma celebrated the vow and duly offered sacrifices, performed the worship and Homa ceremonies.
When, on the grand night of the Eighth lunar day, the two brothers completed the vow as told by Nârada, the Supreme Bhagavatî was pleased with the worship and appeared before them, mounted on a lion, and remaining there on the mountain top, addressed Râma and Laksmana, in a sweet grave tone, like the rumbling of a rain cloud, thus :-- “Râma, I am satisfied with your worship; ask from me what you desire."
"You will kill Râvana; then you would worship Me, with great devotion,in the vernal season and then enjoy your kingdom according to your liking."
Thus saying, the Devî disappeared. Râma Chandra became very glad and,completing that most auspicious ceremony, performed the Vijayâ Pûjâ on the tenth day and gave lots of presents to Nârada and made him go towards the ocean.