Cundī dhāraṇī or mantra also 1st appeared within the Kāraṇḍavyūhasūtra: namaḥ saptānāṃ samyaksaṃbuddha koṭīnāṃ tadyathā oṃ cale cule cunde svāhā "In present-day Theravada apply, mantra exercise is often combined with respiration meditation, so that a single recites a mantra concurrently with in-breath and out-breath to help build tranquility and focus. https://www.youtube.com/@Mahavidyabaglamukhi/