Tṛtīyopadeśaḥ (Mudrā) · Verse 22
आदिनाथोदितं दिव्यमष्टैश्वर्य-प्रदायकम् | वल्लभं सर्व-सिद्धानां दुर्लभं मरुतामपि
ādināthaoditaṃ divyam aṣṭaiśvarya-pradāyakam | vallabhaṃ sarva-siddhānāṃ durlabhaṃ marutām api
Taught by Ādinātha (Śiva), divine, bestower of the eight sovereign powers, beloved by all siddhas, difficult to obtain even for the gods.
Ādinātha — the Primordial Lord — is an epithet of Śiva, considered the first yogī and origin of all the teachings of Haṭha Yoga.This divine lineage gives supreme authority to these practices.
Aṣṭaiśvarya-pradāyakam — bestower of the eight sovereign powers.The classic aṣṭa-siddhis (eight siddhis) are: aṇimā (becoming small), mahimā (becoming big), laghimā (lightness), garimā (heaviness), prāpti (obtaining what is desired), prākāmya (irresistible will), īśitva (lordship) and vaśitva (control over everything).
Durlabhamh marutām api — difficult even for the maruts (wind gods).This expression underlines the rarity and value of these teachings: not even celestial beings have easy access to them.