Kali is the third part of Goddess Adi Para Shakti. She is the goddess of power, spiritual fulfillment, time, as well as presiding over the destruction of the universe. She gives salvation to mankind. She is the incarnation of Parvati and consort of Lord Shiva's incarnation Mahakal. She helped Lord Maha Vishnu slay the demons Madhu and Kaitabha. It is she who also slew Shumbha and Nishumbha in the form of kousiki, who are symbols of ignorance. She is also same as Yogmaya also known as Tamsi Devi and Chandi Devi as per Durga Saptashati. She wears red or black and presides over the Tamas Guna. When Kali is formless, she becomes the sound of Kreem. In her gentler form as Durga, she becomes the sound of Kleem.