Sanskrit

स्पर्शान्कृत्वा बहिर्बाह्यांश्चक्षुश्चैवान्तरे भ्रुवोः। प्राणापानौ समौ कृत्वा नासाभ्यन्तरचारिणौ।।5.27।।

Summary

Excluding external objects, with his gaze fixed between the eyebrows, and the inward and outward breathings passing equally through his nostrils;