Cundī dhāraṇī or mantra also to start with appeared in 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 often a remarkably widespread form of meditation during the Theravada tradition. Simple mantras use repetition https://tantramantraaurvigyaan.com/