Durga was created from the collective energies (shakti) of Brahma, Vishnu and Shiva and all the other gods to slay of the buffalo demon Mahisasura . She is the true source of their inner powers and is greater than any of them. Born fully grown and beautiful, Durga presents a fierce menacing form to her enemies.
Saraswati is the goddess of learning, music and the arts. Identified as the goddess of speech (vac) and as the inventor of the Sanskrit language. She is usually represented as riding on a swan and holding a lute and a manuscript or book.
Lakshmi also known as Shri, is the Hindu goddess of wealth and good fortune. As the wife of Vishnu, she too has taken different forms in order to be with him in each of his incarnations. She rose from the churning of the ocean of milk (an important event in Hinduism), seated on a lotus and holding another blossom in her hand. Lakshmi is often represented in sculpture seated on a lotus, beneficently smiling, and sometimes being lustrated by a pair of elephants pouring water over her. Her vehicle is the white owl. She is greatly revered in Jainism.
Kali, is the goddess of time, doomsday, and death, or the black goddess. Kali is most often characterized as black or blue, with a long lolling tongue, multiple arms, a skirt or girdle of human arms, a necklace of decapitated heads, and a decapitated head in one of her hands. She is often portrayed standing or dancing on her husband, the god Shiva, who lies prostrate beneath her.