The advanced technique of sūtra neti: the thread enters through one nostril and exits through the mouth. The movement “outward and inward” (bahir-antaḥ) cleanses the entire nasal passage.

The benefits extend beyond respiration: purification of the head (śiraḥ-praśuddhi) and improvement of vision (netra-jyotir-vivardhanam). Clean paranasal sinuses reduce congestion that affects the eyes and mental clarity.

The connection between upper respiratory passages and eyes is recognized in traditional medicine.