One of several forms of the great Indian Goddess or Devī (see Devī, Pārvatī, Durgā, śakti), Kālī is the black goddess of destruction, the logical wife for Śiva (see Śiva) in his aspect of great Destroyer in the dance of existence (see Dance of Śiva). But whereas Śiva's dance is in the cosmic realm, Kālī's is in this world. Kālī's name is the feminine form of the word kāla, meaning Time, that which relates to the ever-devouring principle that dominates the animate world. Her name is also related to the Vedic (see Vedic entries) name for one of the tongues of the sacrificial fire. Kālī might be said to be the embodiment of the Hindu (see Hinduism, Hindu Mythology) belief: that the world exists only by way of sacrifice. Essential to this belief is the idea that the consumption of aspects of life is the source of prosperity. It should be noted in this connection that “Prosperity” is the meaning of Lakṣmī (see Lakṣmī), the wife of Viṣṇu (see Viṣṇu), the Preserver. In the popular depiction of Kālī, who has wild eyes, bloody fangs, and human heads as a necklace around her neck, she is standing on an apparently dead Śiva, who nevertheless has an erection. The combination of Śiva's virility, the destructive nature of the Kālī figure, and the fact that the goddess carries a bowl overflowing with the abundance of life, would seem to suggest the necessity of death for fertility and the constant creation of life. It may be said that Kālī's rampages also represent the spiritual necessity of killing weaknesses of the spirit without mercy in order to discover the true self. Kālī is particularly popular in Bengal.