Cundī dhāraṇī or mantra also to start with appeared within the Kāraṇḍavyūhasūtra: namaḥ saptānāṃ samyaksaṃbuddha koṭīnāṃ tadyathā oṃ cale cule cunde svāhā Nirguna mantras, derived from historic Vedic texts, are more mature than any on the 3 kinds. Nirguna mantras will not call on any distinct deity or personalised attribute https://www.youtube.com/@AacharyaGoldieMadan/