रेचके नूनमभ्यस्ते प्राणे स्फारे खमागते ।न स्पृशत्यङ्गरन्ध्राणि प्राणस्पन्दो निरुद्ध्यते
In plain words
When recaka has been well practiced, and prāṇa, grown vast, has passed into the void; it touches the body's openings no more -- the vibration of prāṇa is restrained.