Durga, the Mother Goddess
The seventh form of Durga, the Mother Goddess, is Ma Kaalratri and She is worshipped on the seventh day of the Navratras.
Black or blue-hued like the ratri or night with flowing tresses, Kaalratri is the seventh form of Nav-Durga. Her neck is adorned with necklaces flashing like lightening. She has three bright eyes which are round like the universe and terrible flames emanate from her breath. Her vehicle is a faithful donkey.
Her raised right hand grants boons to all worshippers and her right lower hand is in the mudra of allaying fears, thus making her devotees fearless. Her left upper hand clutches a cleaver, made of iron and there is a mashal or torch held in the lower left hand. She is black-hued like Goddess Kali. Acclaimed as the destroyer of ignorance, Kaalratri is the scourer and enemy of darkness. Her posture of protection assures us of freedom from the miseries of this mundane world.Being auspicious she is also hailed as ‘Shubhamkari’ – one who does good.
She killed Raktabeeja (a asura who had the power to produce a demon from every drop of blood that fell from his body.) The Goddess eventually licked the blood before it trickled to the ground and hence conquered and overpowered him.