Cundī dhāraṇī or mantra also to start with appeared inside the Kāraṇḍavyūhasūtra: namaḥ saptānāṃ samyaksaṃbuddha koṭīnāṃ tadyathā oṃ cale cule cunde svāhā The Durga Gayatri mantra is dedicated to Goddess Durga, celebrated for her strength and protecting power. This is said to generally be the earth most powerful mantra chanted https://www.youtube.com/@Mahavidyabaglamukhi/