योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-64, verse-17

क्वचिच्छून्यमहारण्यवहत्कल्पान्तमारुतः ।
क्वचित्पुष्पवनोद्यानगायद्विद्याधरीगणः ॥ १७ ॥

kvacicchūnyamahāraṇyavahatkalpāntamārutaḥ ,
kvacitpuṣpavanodyānagāyadvidyādharīgaṇaḥ 17

17. kvacit śūnyamahāraṇyavahatkalpāntamārutaḥ
kvacit puṣpavanodyānagāyadvidyādharīgaṇaḥ

17. kvacit śūnyamahāraṇyavahatkalpāntamārutaḥ
kvacit puṣpavanodyānagāyadvidyādharīgaṇaḥ

17. Sometimes, there is the wind of the cosmic dissolution blowing through desolate, vast forests. And sometimes, there are hosts of singing celestial maidens (vidyādharīs) in flower-filled forest gardens.

Words meanings summery:

• क्वचित् (kvacit) - sometimes, somewhere, in some place

• शून्यमहारण्यवहत्कल्पान्तमारुतः (śūnyamahāraṇyavahatkalpāntamārutaḥ) - where the wind of the end of a cosmic age blows through desolate great forests

• क्वचित् (kvacit) - sometimes, somewhere, in some place

• पुष्पवनोद्यानगायद्विद्याधरीगणः (puṣpavanodyānagāyadvidyādharīgaṇaḥ) - where groups of singing celestial maidens (vidyādharīs) are in flower-forest gardens

Words meanings and morphology

क्वचित् (kvacit) - sometimes, somewhere, in some place

(indeclinable)

शून्यमहारण्यवहत्कल्पान्तमारुतः (śūnyamahāraṇyavahatkalpāntamārutaḥ) - where the wind of the end of a cosmic age blows through desolate great forests

(adjective)

Nominative, masculine, singular of śūnyamahāraṇyavahatkalpāntamāruta

śūnyamahāraṇyavahatkalpāntamāruta - with the wind of the end of a cosmic age blowing through desolate great forests

compound adjective

Compound type : bahuvrihi (śūnya+mahāraṇya+vahat+kalpānta+māruta)

• śūnya – empty, desolate, void
  adjective (neuter)
  Root: śū (class 1)
• mahāraṇya – great forest, vast wilderness
  noun (neuter)
  compound of mahā (great) + araṇya (forest)
• vahat – blowing, carrying, flowing
  participle (masculine)
  Present Active Participle
  Derived from root vah (to carry, to blow) in present active voice.
  Root: vah (class 1)
• kalpānta – end of a cosmic cycle (kalpa), dissolution of the universe
  noun (masculine)
  compound of kalpa (cosmic age) + anta (end)
• māruta – wind, air, Marut (deity of wind)
  noun (masculine)

Note: Acts as an adjective describing the place.

क्वचित् (kvacit) - sometimes, somewhere, in some place

(indeclinable)

पुष्पवनोद्यानगायद्विद्याधरीगणः (puṣpavanodyānagāyadvidyādharīgaṇaḥ) - where groups of singing celestial maidens (vidyādharīs) are in flower-forest gardens

(adjective)

Nominative, masculine, singular of puṣpavanodyānagāyadvidyādharīgaṇa

puṣpavanodyānagāyadvidyādharīgaṇa - with groups of singing celestial maidens in flower-forest gardens

compound adjective

Compound type : bahuvrihi (puṣpavana+udyāna+gāyat+vidyādharī+gaṇa)

• puṣpavana – flower garden, forest of flowers
  noun (neuter)
  compound of puṣpa (flower) + vana (forest)
• udyāna – garden, park
  noun (neuter)
  from ud-yā (to go up)
  Prefix: ud
  Root: yā (class 2)
• gāyat – singing, a singer
  participle (masculine)
  Present Active Participle
  Derived from root gai (to sing) in present active voice.
  Root: gai (class 1)
• vidyādharī – female celestial being, celestial nymph (bearer of knowledge/magic)
  noun (feminine)
  feminine form of vidyādhara (compound of vidyā 'knowledge/magic' + dhara 'bearer')
• gaṇa – group, host, multitude, troop
  noun (masculine)

Note: Acts as an adjective describing the place.