Mantra for chanting - ॐ देवी कालरात्र्यै नम:Om Devi Kalratrye Namah
'Om Kalratrye Namah' is the beej mantra for Maa Kalratri. Maa Kalratri is the fierce form of Shakti. Of the Nava Durgas, she is the seventh one, and is thus worshipped on the seventh day of Navratri. She carries fierce weapons, rides a donkey, and is blue in color. Her major weapons are a hooked Vajra and a curved sword. She rules over ghosts, evil spirits, and ghouls. Though she is the fierce manifestation of the Mahadevi, she is also a loving mother and blesses her devotees with success and abundance. She protects her devotees with the abhaya mudra and also grants them health, peace, and contentment.
'Om Kalratrye Namah' is the beej mantra for Maa Kalratri. The fierce mother signifies intuition, inner wisdom, and mysticism. Chanting this mantra will guide you and awaken your dormant potential. Maa Kalratri makes her devotees fearless and revamps their faith
. She is also referred to as Maa Kali. Of the three gunas—rajas, tamas, and sattva—she represents the tamas guna. The manifestations-Maa Kalratri/Kali are yoginis and the tantric forms of the Maha Shakti, the consort of Lord Shiva