योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-46, verse-37

वातोद्धूतचितावह्निप्रज्वलद्व्योममण्डलम् ।
उड्डीनाग्निकणव्राततारासारदिगन्तरम् ॥ ३७ ॥

vātoddhūtacitāvahniprajvaladvyomamaṇḍalam ,
uḍḍīnāgnikaṇavrātatārāsāradigantaram 37

37. vātōddhūtacitāvahniprajvaladvyomamaṇḍalam
uḍḍīnāgnikaṇavrātatarāsāradigantaram

37. vātōddhūtacitāvahniprajvaladvyomamaṇḍalam
uḍḍīnāgnikaṇavrātatarāsāradigantaram

37. The sphere of the sky was ablaze with the fire of the pyres fanned by the wind; the horizons appeared as if showered with stars, which were actually swarms of flying fire-sparks.

Words meanings summery:

• वात्ओद्धूतचितावह्निप्रज्वलद्व्योममण्डलम् (vātōddhūtacitāvahniprajvaladvyomamaṇḍalam) - the celestial sphere blazing with pyre-fire fanned by the wind

• उड्डीनाग्निकणव्राततरासारदिगन्तरम् (uḍḍīnāgnikaṇavrātatarāsāradigantaram) - the directions having showers of stars that are flocks of flying fire sparks

Words meanings and morphology

वात्ओद्धूतचितावह्निप्रज्वलद्व्योममण्डलम् (vātōddhūtacitāvahniprajvaladvyomamaṇḍalam) - the celestial sphere blazing with pyre-fire fanned by the wind

(adjective)

neuter, singular of vātōddhūtacitāvahniprajvaladvyomamaṇḍala

vātōddhūtacitāvahniprajvaladvyomamaṇḍala - sky-sphere ablaze with wind-stirred pyre-fire

Complex Bahuvrīhi compound, describing the sky.

Compound type : bahuvrīhi (vāta+uddhūta+citā+vahni+prajvalat+vyomamaṇḍala)

• vāta – wind
  noun (masculine)
• uddhūta – stirred, agitated, fanned
  adjective (masculine)
  Past Passive Participle
  from ud-√dhū (to shake, agitate)
  Prefix: ud
  Root: dhū (class 5)
• citā – funeral pyre
  noun (feminine)
• vahni – fire, Agni (god of fire)
  noun (masculine)
• prajvalat – blazing, burning brightly
  participle (neuter)
  Present Active Participle
  from pra-√jval (to blaze)
  Prefix: pra
  Root: jval (class 1)
• vyomamaṇḍala – celestial sphere, sky-circle
  noun (neuter)

Note: Used as an adjective, possibly for an implied 'scene' or 'atmosphere'.

उड्डीनाग्निकणव्राततरासारदिगन्तरम् (uḍḍīnāgnikaṇavrātatarāsāradigantaram) - the directions having showers of stars that are flocks of flying fire sparks

(adjective)

neuter, singular of uḍḍīnāgnikaṇavrātatarāsāradigantara

uḍḍīnāgnikaṇavrātatarāsāradigantara - directions having star-showers made of multitudes of flying fire-sparks

Complex Bahuvrīhi compound, describing the directions/horizons.

Compound type : bahuvrīhi (uḍḍīna+agnikaṇa+vrāta+tārāsāra+digantara)

• uḍḍīna – flown up, soaring, flying
  adjective (masculine)
  Past Passive Participle
  from ud-√ḍī (to fly up)
  Prefix: ud
  Root: ḍī (class 4)
• agnikaṇa – fire spark
  noun (masculine)
• vrāta – flock, multitude, host
  noun (masculine)
• tārāsāra – shower of stars
  noun (masculine)
• digantara – intermediate direction, horizon, all directions
  noun (neuter)

Note: Used as an adjective, possibly for an implied 'scene' or 'atmosphere'.