Cundī dhāraṇī or mantra also to start with appeared during the Kāraṇḍavyūhasūtra: namaḥ saptānāṃ samyaksaṃbuddha koṭīnāṃ tadyathā oṃ cale cule cunde svāhā "In contemporary Theravada follow, mantra observe is usually coupled with respiratory meditation, to ensure one recites a mantra simultaneously with in-breath and out-breath that can help build tranquility https://tantramantraaurvigyaan.com/