Often chanted during the Navaratri (nine days of worship in the months of April and October), the Devi Mahatmya or Durga Saptashati is a unique book in the world. It is the base and root of the Shakta tradition. Its reading is believed to give whatever one wants. A powerful reservoir of mantras from the beginning to the end, every verse of this text is a dynamic force.The Devi Mahatmaya describes how Devi assumes many aspects, according to the tasks to be performed by her, sometimes sweet and tender, and at others terrible and devouring.