Cundī dhāraṇī or mantra also to start with appeared within the Kāraṇḍavyūhasūtra: namaḥ saptānāṃ samyaksaṃbuddha koṭīnāṃ tadyathā oṃ cale cule cunde svāhā The use of mantra or the repetition of sure phrases in Pali is actually a very prevalent sort of meditation within the Theravada custom. Straightforward mantras use repetition https://www.youtube.com/@AacharyaGoldieMadan/