Shutting out external contacts, fixing the gaze between the eyebrows, and evening out the incoming and outgoing breaths as they move within the nostrils…
Explanation
Krishna is describing the practice of meditation for those who seek liberation, and this sentence continues into the next verse. He speaks of shutting out outer sense contacts (sparśa), resting the gaze between the eyebrows, and balancing the inhaling breath (prāṇa) and exhaling breath (apāna). Some readers take the gaze literally as a physical practice, while others take it as a pointer to inward focus.