The Skanda Purana indicates that the name of Durga is given to the goddess Parvati, consort of Siva, when she kills the Asura Durga. A myth from the Devi Mahatmya, however, states that the Goddess acquires this name when she kills the demon Durgama. Her qualities as a goddess are denoted by her names as well. She is Universal Mother. As Uma, Lord Shiva’s wife, she is seen as a protector and a mother figure. Goddess Durga is the symbol of 3 states : Creative, Preservative and Destructive. Various forms Durga, Chandi, Mahakali, Mahalakshmi and Maha Saraswati are Her divine forms. Each form of the Devi has a distinctive role meant for a definite purpose.
The Devi, is depicted as one supreme Goddess and also the many goddesses.
Prakriti is a complete concept of the three gunas. Sattva is characterized by brilliance, knowledge, equanimity and lightness. Rajas is characterized by movement, dynamism, ambition, attachment and reactivity or raga. Tamas is characterized by ignorance, delusion and inertia, the power of resistance. The entire manifest world is subject to the influence of the three gunas.
Then began the battle between that Devi and the asuras, Goddess Durga, the Shakti and energy and anger turned against evil, set herself to destroy the armies of Mahishasura. Mahisasura’s general, named Chiksura and Chamara fought. A asura named Udagra, Mahahanu, Asiloman, and Baskala with huge army fought in that battle. Privarita with many thousands of elephants and horses, fought in that battle. Showering her own weapons and arms, Goddess Chandika too, quite playfully, cut into pieces all those weapons and arms. With gods and sages extolling her, showing no signs of fatigue on her face, the Goddess Iswari hurled her weapons and arms at the bodies of the asuras. The mount of the Goddess, the lion, shaking its mane in rage, stalked amidst the armies of the asuras like a fire. The Goddess Ambika, fighting in the battle created and devastated the army. Ciksura, the great asura general, proceeded in anger to fight with Ambika. He showered arrows on the Goddess in battle just as a cloud showers rain on the peak of Mount Meru. Camara also came agreesively towards devi Ambika…Devi’s Lioan injured Camara in the battle. Udagra was killed in the battle by the Devi. Karala was brought down. Devi pulverised Uddhata with the blows of her mace. She killed Baskala with a javelin and destroyed Tamra and Andhaka with arrows. The Supreme Iswari killed Ugrasya, Ugravirya and Mahahanu too with her trident. With her sword she struck down Bidala’s head from his body, and dispatched both Durdhara and Durmudha to the abode of Death with her arrows.