Mahakali, is the consort of Mahakala, the god of consciousness, the basis of reality and existence. Mahakali in Sanskrit is etymologically the feminized variant of Mahakala or Great Time, an epithet of the god Shiva in Hinduism. Kali and all her forms are the different manifestations of Mahakali.
Meaning
Mahakali's history is contained in various Puranic and TantricHindu Scriptures. In these She is variously portrayed as the Adi-Shakti-Goddess Durga, the Primeval Force of the Universe, identical with the Ultimate Reality or Brahman. She is also known as the Prakriti or World as opposed to the Purusha or Consciousness, or as one of three manifestations of Mahadevi Durga that represent the three Gunas or attributes in Samkhya philosophy. In this interpretation Mahakali represents Tamas or the force of inertia. A common understanding of the Devi Mahatmya text, a later interpolation into the Markandeya Purana, considered a core text of Shaktism, assigns a different form of the Goddess to each of the three episodes therein. Here Mahakali is assigned to the first episode. She is described as an abstract energy, the yoganidra of Vishnu. Brahma invokes Her and She emerges from Vishnu and He awakenes. Thereafter kills the demons Madhu-Kaitabha..She is the Goddess of time.
Iconography
Mahakali is most often depicted as blue/black in popular Indian art. Her most common four armed iconographic image shows each hand carrying variously a sword, a trishul, a severed head and a bowl or skull-cup catching the blood of the severed head. Her eyes are described as red with intoxication and in absolute rage, Her hair is shown disheveled, small fangs sometimes protrude out of Her mouth and Her tongue is lolling. She has a garland consisting of the heads of demons she has slaughtered, variously enumerated at 108 or 50, which represents the letters of the Sanskrit alphabet, Devanagari, and wears a skirt made of demon arms. Her ten headed image is known as Dasa Mahavidya Mahakali, and in this form She is said to represent the ten Mahavidyas or "Great Wisdom s". She is depicted in this form as having ten heads, ten arms, and ten legs but otherwise usually conforms to the four armed icon in other respects. Each of her ten hands is carrying an implement which varies in different accounts, but each of these represent the power of one of the Devas or Hindu Gods and are often the identifying weapon or ritual item of a given Deva. The implication is that Mahakali subsumes and is responsible for the powers that these deities possess and this is in line with the interpretation that Mahakali is identical with Brahman. While not displaying ten heads, an "ekamukhi" or one headed image may be displayed with ten arms, signifying the same concept: the powers of the various Gods come only through Her grace. In either one of these images she is shown standing on the prone, inert or body of Shiva. This is interpreted in various ways but the most common is that Mahakali represents Shakti, the power of pure creation in the universe, and Shiva represents pure Consciousness which is inert in and of itself. While this is an advanced concept in monistic Shaktism, it also agrees with the NondualTrikaphilosophy of Kashmir, popularly known as Kashmir Shaivism and associated most famously with Abhinavagupta. There is a colloquial saying that "Shiva without Shakti is Shava" which means that without the power of action that is Mahakali Shiva is inactive; Shava means corpse in Sanskrit and the play on words is that all Sanskrit consonants are assumed to be followed by a short letter "a" unless otherwise noted. The short letter "i" represents the female power or Shakti that activates Creation. This is often the explanation for why She is standing on Shiva, who is her husband in Shaktism, and also the Supreme Godhead in Shaivism. Another understanding is that the wild destructive Mahakali can only stop her fury in the presence of Shiva the God of Consciousness, so that the balance of life is not completely overrun over by wild nature. In Kashmir Shaivism the highest form of Kali is Kalasankarshini who is nirguna, formless and is often show as a flame above the head of Guhya Kali the highest gross form of Kali. In Nepali Newar arts, both form and formless attributes of Kali is often envisioned in a single art form showing the hierarchy of goddesses in their tradition. In it Guhyakali image culminates in flame, with Kalasankarshini, the highest deity in the sequence, who consumes time within herself and is envisioned solely as a flame representing Para Brahman. She is like a divine actress in her own universal play who assumes the form/role of Sristi Kali, Rakta Kali, Yama Kali, Samhara Kali, Mrityu Kali, Rudra Kali, Mahakaala Kali, Paramaraka Kali, Kalagnirudra Kali, Martanda Kali, Sthitinasha Kali and Mahabhairavaghorachanda Kali who is none other than Kalasankarshini Kali