Cundī dhāraṇī or mantra also first appeared inside the Kāraṇḍavyūhasūtra: namaḥ saptānāṃ samyaksaṃbuddha koṭīnāṃ tadyathā oṃ cale cule cunde svāhā For Conze, the final phase of the development of Buddhist mantras is the tantric phase of Mantrayana. With this tantric section, mantras are for the pretty Centre of the path https://www.youtube.com/@Mahavidyabaglamukhi/