अथ नेतिः सूत्रं वितस्तिसुस्निग्धं नासानाले प्रवेशयेत् । मुखान्निर्गमयेच्चैषा नेतिः सिद्धैर्निगद्यते ॥ २.२९ ॥

atha netiḥ sūtraṃ vitastisusnigdhaṃ nāsānāle praveśayet । mukhānnirgamayeccaiṣā netiḥ siddhairnigadyate ॥ 2.29 ॥

A cord made of thread, dipped in oil (su-snigdha) and then inserted through the nasal passage and pulled out through the mouth is called Neti Karma by yogis.