Cundī dhāraṇī or mantra also very first appeared while in the Kāraṇḍavyūhasūtra: namaḥ saptānāṃ samyaksaṃbuddha koṭīnāṃ tadyathā oṃ cale cule cunde svāhā The Durga Gayatri mantra is dedicated to Goddess Durga, celebrated for her toughness and protective electricity. That is reported to be the entire world most powerful mantra chanted https://www.youtube.com/@Mahavidyabaglamukhi/