Over time, Kali has been worshipped by devotional movements and tantric sects variously as the Divine Mother, Mother of the Universe, Adi Shakti, or Adi Parashakti. Shakta Hindu and Tantric sects additionally worship her as the ultimate reality or Brahman. She is also seen as the divine protector and the one who bestows moksha, or liberation. Kali is often portrayed standing or dancing on her consort, the Hindu god Shiva, who lies calm and prostrate beneath her. Kali is worshipped by Hindus throughout India and Nepal.

Iconogrphy
Kali is portrayed mostly in two forms: the popular four-armed form and the ten-armed Mahakali form. In both of her forms, she is described as being black in colour but is most often depicted as blue in popular Indian art. 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 is often shown wearing a skirt made of human arms and a garland of human heads, and she is also shown wearing a tiger skin. She is also accompanied by serpents and a jackal while standing on the calm and prostrate Shiva, usually right foot forward to symbolize the more popular Dakshinamarga or right-handed path, as opposed to the more infamous and transgressive Vamamarga or left-handed path. These serpents and jackals are shown to drink the blood of Rakta-bija's head which is dropping while the goddess carries it in her hand, and preventing it to fall on the ground.

In the ten-armed form of Mahakali she is depicted as shining like a blue stone. She has ten faces, ten feet, and three eyes for each head. She has ornaments decked on all her limbs. There is no association with Shiva.

The Kalika Purana describes Kali as possessing a soothing dark complexion, as perfectly beautiful, riding a lion, four-armed, holding a sword and blue lotuses, her hair unrestrained, body firm and youthful.

In spite of her seemingly terrible form, Kali Ma is often considered the kindest and most loving of all the Hindu goddesses, as she is regarded by her devotees as the Mother of the whole Universe. And because of her terrible form, she is also often seen as a great protector.

When the Sri Ramakrishna once asked a devotee why one would prefer to worship Mother over him, this devotee rhetorically replied, "Maharaj, when they are in trouble your devotees come running to you. But, where do you run when you are in trouble?"