हठयोग प्रदीपिका (योगी स्वात्माराम - ज्योत्स्ना टीका सहित सटीक)

HAṬHAYOGAPRADĪPIKĀ 51
74. Contracting the anus, practise the Uḍḍīyāna-
bandha. Constrain the Iḍā and the Piṅgalā [by the
Jālaṁdhara-bandha], and cause [the breath] to flow
through the Suṣumnā.
75. By these means the breath becomes motion-
less [in the Suṣumnā]; then there is no death, old age,
disease, etc.
76. Yogin-s know these three excellent Bandha-s
practised by the great Siddha-s, which are the means
of success in the various Haṭha-yoga practices.
77. Here Viparītakaraṇī [is described]: What-
ever nectar flows from the Moon which is of divine
form, all that is swallowed up by the Sun. Hence the
body becomes old.
The Moon is situated at the root of the palate and pours down
a stream of nectar; the Sun is situated near the navel and its fire
consumes the ambrosial flow.
78. There is an excellent process (karaṇa) by
which the Sun is duped. This should be learnt from
the Guru, and not through theoretical study of the
Śāstra-s.
79. When the Sun is above and the Moon below
[of the practitioner] whose navel is above and palate
below, it is the Viparītakaraṇī. It is to be learnt
through the instructions of a Guru.
80. In the case of one who practises this daily,
the gastric fire is increased, and the practitioner should
always have plenty of food.