Cundī dhāraṇī or mantra also very first appeared during the Kāraṇḍavyūhasūtra: namaḥ saptānāṃ samyaksaṃbuddha koṭīnāṃ tadyathā oṃ cale cule cunde svāhā Power of Repetition: The greater mantras are repeated, the more power it derives mainly because it sets up a vibration both equally on your subconscious brain and nervous technique, https://www.youtube.com/@Mahavidyabaglamukhi/