योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-73, verse-65

अमितानन्तपर्यन्तां लोकपालेक्षितैरपि ।
केवलं पवनस्पन्दप्रवहद्धूलिकुण्डलाम् ॥ ६५ ॥

amitānantaparyantāṃ lokapālekṣitairapi ,
kevalaṃ pavanaspandapravahaddhūlikuṇḍalām 65

65. amitānantaparyantām lokapālekṣitaiḥ api
kevalam pavanaspandapravahaddhūlikuṇḍalām

65. amitānantaparyantām lokapālekṣitaiḥ api
kevalam pavanaspandapravahaddhūlikuṇḍalām

65. Its extent was immeasurable and endless, undetectable even by the world-guardians, and it consisted solely of dust-spirals swirling with the wind's movement.

Words meanings summery:

• अमितानन्तपर्यन्ताम् (amitānantaparyantām) - whose end is immeasurable and infinite, unbounded, endless

• लोकपालेक्षितैः (lokapālekṣitaiḥ) - by the observations of the world-guardians, by the world-guardians' gazes

• अपि (api) - even, also, too

• केवलम् (kevalam) - only, solely, merely

• पवनस्पन्दप्रवहद्धूलिकुण्डलाम् (pavanaspandapravahaddhūlikuṇḍalām) - having dust-spirals carried by the wind's movement

Words meanings and morphology

अमितानन्तपर्यन्ताम् (amitānantaparyantām) - whose end is immeasurable and infinite, unbounded, endless

(adjective)

Accusative, feminine, singular of amitānantaparyantā

amitānantaparyantā - whose end is immeasurable and infinite

Compound type : Bahuvrīhi (amita+ananta+paryanta)

• amita – immeasurable, unmeasured
  adjective (masculine)
  Past Passive Participle (negative)
  Prefix: a
  Root: mā (class 2)
• ananta – infinite, endless, eternal
  adjective (masculine)
• paryanta – end, limit, boundary
  noun (masculine)
  Prefixes: pari+anta

लोकपालेक्षितैः (lokapālekṣitaiḥ) - by the observations of the world-guardians, by the world-guardians' gazes

(noun)

Instrumental, masculine, plural of lokapālekṣita

lokapālekṣita - observed by world-guardians, observation of world-guardians

Compound type : Tatpurusha (lokapāla+īkṣita)

• lokapāla – guardian of the world
  noun (masculine)
• īkṣita – observed, seen; observation
  adjective (masculine)
  Past Passive Participle
  Root: īkṣ (class 1)

Note: Refers to the observations made by world-guardians.

अपि (api) - even, also, too

(indeclinable)

केवलम् (kevalam) - only, solely, merely

(indeclinable)

Note: Used adverbially here.

पवनस्पन्दप्रवहद्धूलिकुण्डलाम् (pavanaspandapravahaddhūlikuṇḍalām) - having dust-spirals carried by the wind's movement

(adjective)

Accusative, feminine, singular of pavanaspandapravahaddhūlikuṇḍalā

pavanaspandapravahaddhūlikuṇḍalā - having dust-spirals carried by the wind's movement

Compound type : Bahuvrīhi (pavana+spanda+pravahat+dhūli+kuṇḍala)

• pavana – wind, air
  noun (masculine)
  Root: pu (class 1)
• spanda – movement, vibration, pulsation
  noun (masculine)
  Root: spand (class 1)
• pravahat – flowing, moving, carrying
  adjective (masculine)
  Present Active Participle
  Prefix: pra
  Root: vah (class 1)
• dhūli – dust
  noun (feminine)
• kuṇḍala – ring, spiral, curl
  noun (neuter)