SHE IS PROTECTOR, EVIL DESTROYER , KILLS EGO, PROVIDE MOKSHA , GENTLE MOTHER
Maa Kali is divine mother, fearful and ferocious form of Durga .
She is beleived to be originated from the brow of Goddess Durga during one of her battles with the evil forces.
Origin of Goddess Kali
It is found in "Chandi" section of Makrenda Purana. She evolves from Devi Durga herself in the midst of battlefield. According to Markenda Purana Devi appears mainlyin three forms. She appeared when ever the Gods are struck in any crisis and prayed for her help.
Firstly, she appeared when Brahma pleaded her for killing Madhu and Kaitava.
Secondly, she appeared as Mahishasurmardini.
Thirdly, she was called through prayers for killing Sumbha and Nishumbha, the two demon brothers.
All the other Goddess are her different forms Katyani, Shivaduti, Sakambhari, Bhima or Bhramri. Description of this Bhramari (look of a wasp) is found in Kalika Purana. Here Devi drinks nectar like a black wasp.
According to Chandi Purana all Gods including Indra prayed to Devi to rescue them from Sumbha and Nishumbha. Devi created another Goddess from her body called Devi Koushiki, as she is born out of the cell (kosh) of Devi.As Devi Koushiki was wandering at Himalayas Chanda and Munda, two followers of Shumbha and Nishumbha, found her.
As the legend goes, in the battle, Kali was so much involved in the killing spree that she got carried away and began destroying everything in sight. To stop her, Lord Shiva threw himself under her feet. Shocked at this sight, Kali stuck out her tongue in astonishment, and put an end to her homicidal rampage. Hence the common image of Kali shows her standing with one foot on Shiva's chest, with her enormous tongue stuck out.
Her black complexion symbolizes her all-embracing and transcendental nature. Says the Mahanirvana Tantra: "Just as all colors disappear in black, so all names and forms disappear in her". Her nudity is primeval, fundamental, and transparent like Nature — the earth, sea, and sky. Kali is free from the illusory covering, for she is beyond the all maya or "false consciousness." Kali's garland of fifty human heads that stands for the fifty letters in the Sanskrit alphabet, symbolizes infinite knowledge.
Her girdle of severed human hands signifies work and liberation from the cycle of karma. Her white teeth show her inner purity, and her red lolling tongue indicates her omnivorous nature — "her indiscriminate enjoyment of all the world's 'flavors'." Her sword is the destroyer of false consciousness and the eight bonds that bind us.
Her three eyes represent past, present, and future, — the three modes of time — an attribute that lies in the very name Kali. 'Kala' in Sanskrit means time.
She provides moksha or liberation to Her children. She is the counterpart of Shiva the destroyer. They are the destroyers of unreality. The ego sees Mother Kali and trembles with fear because the ego sees in Her its own eventual demise. A person who is attached to his or her ego will not be receptive to Maa and she will appear in a fearsome form. A mature soul who engages in spiritual practice to remove the illusion of the ego sees Maa as very sweet, affectionate, and overflowing with incomprehensible love for Her children.
O Kali, my mother full of bliss! Enchantress of the almighty Shiva!
In Thy delirious joy Thou dancest, clapping Thy hands together!
Thou art the Mover of all that move, and we are but Thy helpless toys.