हठयोग प्रदीपिका (योगी स्वात्माराम - ज्योत्स्ना टीका सहित सटीक)

50 HAṬHAYOGAPRADĪPIKĀ 68. By reason of that, the Kuṇḍalinī which is asleep, feeling the extreme heat, is awakened, just as a serpent struck by a stick hisses and straightens itself. 69. Then it enters within the Suṣumnā, like [a snake] which enters its hole. Therefore the Yogin-s should every day and always practise Mūla-bandha. 70. Then the JĀLAṂDHARA-BANDHA [is described]: Contract the throat and hold the chin firmly against the chest [about four inches from the chest]. This is the Bandha called Jālaṃdhara which destroys old age and death. 71. Because it constricts the network (jāla) of Nāḍī-s and [arrests] the downward course of the flow of ambrosial water (jāla) [from the cavity in the palate], this Bandha is Jālaṃdhara. It destroys all the maladies of the throat. 72. When the Jālaṃdhara-bandha is practised, by contraction of the throat, the nectar does not fall into the [gastric] fire and the Prāṇa is not agitated [i.e. not misdirected]. 73. By the [firm] contraction of the throat the two Nāḍī-s [Iḍā and Piṅgalā] are deadened. Here [in the throat] is situated the middle Cakra (Viśuddhi). This binds the sixteen ādhāra-s (vital centres). They are the toes, ankles, knees, thighs, the perineum, the generative organs, the navel, the heart, the neck, the throat, the tongue, the nose, the centre of the eyebrows, the forehead, the head and the Brahmarandhra, i.e. the upper opening of the Suṣumnā Nāḍī in the skull.