Why is Mother Kali so radiantly black? Because she is so powerful, even mentioning her name destroys delusion. Because she is so beautiful, Lord Shiva, Conqueror of Death, lies blissfully vanquished beneath her feet. There are subtle hues of blackness, but her bright complexion is the mystery that is utterly black, overwhelmingly black, wonderfully black. When she awakens in the lotus shrine within the heart's secret cave, her blackness becomes the mystic illumination that causes the twelve-petal blossom there to glow more intensely than golden embers.
The poet above obviously refers to the Anahata chakra, which is believed to be twelve-petalled and located at the heart.
The four-armed Kali stands atop the chest of her husband Shiva. In her two right hands she holds a sickle and trident respectively, implements with which she annihilates demons. Metaphorically this is suggestive of the negative forces which lie deep within us and which must be overcome if the true spiritual path is to be realized.
Her left hands hold a severed head and skull cup. The head belongs to the demon of ignorance and the empty vessel made out of half a human skull is for collecting the blood which spills when Kali's process of destruction and annihilation begins. He sole garment consists of a skirt made up of human hands and her only adornment is a long necklace made up of human skulls extending down to her midriff.
Of Related Interest:
Goddess Kali (Orissa's Paata Painting)
Kali (Miniature Painting On Paper)
Kali the Benevolent Goddess (Brass Statue)
The Terrestrial Temple of Kali (Tantric Jewelry)
Goddess Kali (Doll)
Kali Puja (Book)