Haṭha Pradīpikā Chapter One verse 1

श्रीआदिनाथाय नमोऽस्तु तस्मै येनोपदिष्टा हठयोगविद्या ।
विभ्राजते प्रोन्नतराजयोगम् आरोढुम् इच्छोर् अधिरोहिणीव ॥१॥

śrī ādi nāthāya namaḥ astu tasmai yena upadiṣṭā haṭha yoga vidyā |
vibhrājate pronnata rāja yogam āroḍhum icchoḥ adhirohiṇī iva ||

Let there be salutations to the first Lord
who taught the knowledge of Haṭha Yoga,
which shines forth as if a ladder for one who
wishes to ascend to the elevated Râja Yoga.

śrī - blessedādi - in the beginning, at first; beginning, commencement; a firstling, first-fruits; beginning with, and so on; and the restnātha - a protector, patron, possessor, owner, lordnamas - bow, obeisance, reverential salutationastu - let it be, be it so; there must be or should betasmai - to thatyena - whereby, by which, wherefore, on which account, by means of whichupadiṣṭa - taught, instructedhaṭha - force, forceful; by force, forciblyyoga - the act of yoking, joining, attaching, harnessing; a yoke, team, vehicle, conveyance; employment, use, application, performance; a means, expedient, device, way, manner, methodvidyā - any knowledge whether true or false; knowledge of the soul or spiritual knowledge; true knowledge; science, learning, scholarship, philosophyvibhrāj - to shine forth, be bright or radiantpronnata - raised up, elevated, lofty, high; superiorrāja - a king, sovereign, chief or best of its kindāroḍhum - to ascendicchoḥ - for that person who wishesadhirohiṇī - a ladder, flight of stepsiva - as if