During Navaratri, a Nanda Deepa (also known as an Akhand Deepa or eternal lamp) is a continuous, unquenchable flame kept burning for all days of the Navaratri festival, symbolizing Devotion to Shakti, purity, knowledge, and the defeat of darkness. This sacred lamp is lit at the beginning of Navaratri and requires constant vigilance to ensure it doesn’t go out, representing unwavering devotion and inviting blessings and prosperity into the home