in meditation, showing the
chakras and the three main
nāḍīs (channels) of the
subtle body. A small serpent, representing the
Kundalini, climbs from the base of the central nāḍī. The
Hatha Yoga Pradīpikā lists thirty-five earlier Haṭha Yoga masters (
siddhas), including
Ādi Nātha,
Matsyendranāth and
Gorakṣanāth. The work consists of 389
shlokas (verses) in four chapters that describe topics including purification (Sanskrit:
ṣaṭkarma), posture (
āsana), breath control (
prāṇāyāma), spiritual centres in the body (
chakra),
kuṇḍalinī, energetic locks (
bandha), energy (
prāṇa), channels of the
subtle body (
nāḍī), and energetic seals (
mudrā). • Chapter 1 deals with setting the proper environment for yoga, the ethical duties of a yogi, and the
asanas. • Chapter 2 deals with
pranayama and the
satkarmas. • Chapter 3 discusses the
mudras and their benefits. • Chapter 4 deals with
meditation and
samadhi as a journey of personal spiritual growth. It runs in the line of
Hindu yoga (as opposed to the
Buddhist and
Jain traditions) and is dedicated to The First Lord (Ādi Nātha), one of the names of Lord
Śiva (the Hindu god of destruction and renewal). He is described in several Nāth texts as having imparted the secret of haṭha yoga to his divine consort
Pārvatī.
Mechanisms The
Hatha Yoga Pradipika presents two contradictory models of how Hatha Yoga may lead to immortality (
moksha), both culled from other texts, without attempting to harmonise them. The earlier model involves the manipulation of
Bindu; it drips continually from the moon centre in the head, falling to its destruction either in the digestive fire of the belly (the sun centre), or to be ejaculated as semen, with which it was identified. The loss of Bindu causes progressive weakening and ultimately death. In this model, Bindu is to be conserved, and the various mudras act to block its passage down the
Sushumna nadi, the central channel of the
subtle body. The later model involves the stimulation of
Kundalini, visualised as a small serpent coiled around the base of the Sushumna nadi. In this model, the mudras serve to unblock the channel, allowing Kundalini to rise. When Kundalini finally reaches the top at the
Sahasrara chakra, the thousand-petalled lotus, the store of
Amrita, the nectar of immortality stored in the head, is released. The Amrita then floods down through the body, rendering it immortal. ==Modern research==