योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-73, verse-53

प्राणापानपरावर्तदोला तदुदरोदिता ।
वातस्कन्धाभिधां धत्ते जगत्तद्धृदयं महत् ॥ ५३ ॥

prāṇāpānaparāvartadolā tadudaroditā ,
vātaskandhābhidhāṃ dhatte jagattaddhṛdayaṃ mahat 53

53. prāṇa-apāna-parāvarta-dolā tat-udara-uditā |
vāta-skandha-abhidhām dhatte jagat tat-hṛdayam mahat

53. tat-udara-uditā prāṇa-apāna-parāvarta-dolā vāta-skandha-abhidhām dhatte.
tat jagat mahat hṛdayam (ca asti).

53. The oscillation (dolā) of the vital breaths, incoming (prāṇa) and outgoing (apāna), which arises within its (that supreme consciousness') interior, assumes the designation 'wind principle' (vāta-skandha). This wind principle is the great heart (hṛdayam) of the world (jagat).

Words meanings summery:

• प्राण-अपान-परावर्त-दोला (prāṇa-apāna-parāvarta-dolā) - the swing/oscillation of prāṇa and apāna

• तत्-उदर-उदिता (tat-udara-uditā) - arisen within the interior of that supreme consciousness (arisen in its interior)

• वात-स्कन्ध-अभिधाम् (vāta-skandha-abhidhām) - the name/designation 'wind principle'

• धत्ते (dhatte) - assumes, holds, bears

• जगत् (jagat) - the world, universe

• तत्-हृदयम् (tat-hṛdayam) - its heart

• महत् (mahat) - great, vast, mighty

Words meanings and morphology

प्राण-अपान-परावर्त-दोला (prāṇa-apāna-parāvarta-dolā) - the swing/oscillation of prāṇa and apāna

(noun)

Nominative, feminine, singular of prāṇa-apāna-parāvarta-dolā

prāṇa-apāna-parāvarta-dolā - oscillation of the incoming and outgoing breaths

Compound type : tatpuruṣa (prāṇa+apāna+parāvarta+dolā)

• prāṇa – life-breath, vital air, incoming breath, vital energy (prāṇa)
  noun (masculine)
  Prefix: pra
  Root: an (class 2)
• apāna – outgoing breath, vital air, downward-moving vital air (prāṇa)
  noun (masculine)
  Prefix: apa
  Root: an (class 2)
• parāvarta – revolving, turning back, oscillation, change
  noun (masculine)
  Derived from root vṛt (to turn) with upasarga parā-ā
  Prefixes: parā+ā
  Root: vṛt (class 1)
• dolā – swing, oscillation, cradle
  noun (feminine)

तत्-उदर-उदिता (tat-udara-uditā) - arisen within the interior of that supreme consciousness (arisen in its interior)

(adjective)

Nominative, feminine, singular of tat-udara-uditā

tat-udara-uditā - arisen in its belly/interior

Compound type : tatpuruṣa (tat+udara+uditā)

• tad – that
  pronoun (neuter)
• udara – belly, interior, womb
  noun (neuter)
• uditā – arisen, manifested, appeared
  adjective (feminine)
  Past Passive Participle
  Derived from root i (to go) with upasarga ud
  Prefix: ud
  Root: i (class 2)

वात-स्कन्ध-अभिधाम् (vāta-skandha-abhidhām) - the name/designation 'wind principle'

(noun)

Accusative, feminine, singular of vāta-skandha-abhidhā

vāta-skandha-abhidhā - name of 'mass of air' or 'wind principle'

Compound type : tatpuruṣa (vāta+skandha+abhidhā)

• vāta – wind, air, vital air
  noun (masculine)
  Root: vā (class 2)
• skandha – mass, aggregate, trunk, chapter, principle
  noun (masculine)
• abhidhā – name, appellation, designation, word
  noun (feminine)
  Prefix: abhi
  Root: dhā (class 3)

धत्ते (dhatte) - assumes, holds, bears

(verb)

3rd person , singular, middle, present (lat) of dhā

Root: dhā (class 3)

जगत् (jagat) - the world, universe

(noun)

Nominative, neuter, singular of jagat

jagat - the world, universe, moving, living beings

Present Active Participle (substantivized)

Derived from root gam (to go, move)

Root: gam (class 1)

तत्-हृदयम् (tat-hṛdayam) - its heart

(noun)

Nominative, neuter, singular of tat-hṛdaya

tat-hṛdaya - its heart

Compound type : tatpuruṣa (tad+hṛdaya)

• tad – that, its
  pronoun (neuter)
• hṛdaya – heart, mind, core, essence
  noun (neuter)

महत् (mahat) - great, vast, mighty

(adjective)

Nominative, neuter, singular of mahat

mahat - great, large, vast, mighty