Bhagavad Gītā Chapter Five verse 27
स्पर्शान्कृत्वा बहिर्बाह्यांश्चक्षुश्चैवान्तरे भ्रुवो: ।
प्राणापानौ समौ कृत्वा नासाभ्यन्तरचारिणौ ॥ २७ ॥
sparśān kṛtvā bahir bāhyāṃś cakṣuścaivāntare bhruvoḥ |
prāṇāpānāu samāu kṛtvā nāsābhyantaracāriṇāu ||
Commentaries and Reflections
Commentary by T Krishnamacharya:
“Use Samavṛtti in Prāṇāyāma to reduce the power of Rajas and Tamas.”