Cundī dhāraṇī or mantra also first appeared from the Kāraṇḍavyūhasūtra: namaḥ saptānāṃ samyaksaṃbuddha koṭīnāṃ tadyathā oṃ cale cule cunde svāhā "In modern day Theravada practice, mantra observe is commonly combined with respiratory meditation, in order that a person recites a mantra simultaneously with in-breath and out-breath to assist establish tranquility https://www.youtube.com/@Mahavidyabaglamukhi/