योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-24, verse-34

क्वचिन्मेरुनदीकल्पवातधूलिविधूसरम् ।
क्वचिद्विमानगीर्वाणप्रभाचित्रबलाङ्गकम् ॥ ३४ ॥

kvacinmerunadīkalpavātadhūlividhūsaram ,
kvacidvimānagīrvāṇaprabhācitrabalāṅgakam 34

34. kvacit merunadīkalpavātadhūlividhūsaram
kvacit vimānagīrvāṇaprabhācitrabalāṅgakam

34. kvacit merunadīkalpavātadhūlividhūsaram
kvacit vimānagīrvāṇaprabhācitrabalāṅgakam

34. In some places, it is gray (vidhūsaram) and dusty from the wind-blown dust (vāta-dhūli) that resembles a river of Mount Meru (nadī). In other places, its form (aṅgakam) is variegated and powerful (citra-bala), shining with the splendor (prabhā) of celestial beings (gīrvāṇa) in their aerial cars (vimāna).

Words meanings summery:

• क्वचित् (kvacit) - somewhere, in some places

• मेरुनदीकल्पवातधूलिविधूसरम् (merunadīkalpavātadhūlividhūsaram) - grayish (vidhūsara) and dusty due to wind-blown dust (vāta-dhūli) that resembles a river (nadī) from Mount Meru (meru) (dusty and gray like the wind-blown dust from a Meru-river)

• क्वचित् (kvacit) - somewhere, in other places

• विमानगीर्वाणप्रभाचित्रबलाङ्गकम् (vimānagīrvāṇaprabhācitrabalāṅgakam) - whose form (aṅgakam) is wonderfully varied (citra) and strong (bala), glowing with the divine splendor (prabhā) of celestial beings (gīrvāṇa) travelling in their aerial cars (vimāna) (whose body/form is variegated and powerful due to the splendor of deities in aerial cars)

Words meanings and morphology

क्वचित् (kvacit) - somewhere, in some places

(indeclinable)

मेरुनदीकल्पवातधूलिविधूसरम् (merunadīkalpavātadhūlividhūsaram) - grayish (vidhūsara) and dusty due to wind-blown dust (vāta-dhūli) that resembles a river (nadī) from Mount Meru (meru) (dusty and gray like the wind-blown dust from a Meru-river)

(adjective)

Accusative, neuter, singular of merunadīkalpavātadhūlividhūsara

merunadīkalpavātadhūlividhūsara - dusty and gray like the wind-blown dust from a Meru-river

Compound type : bahuvrīhi (merunadī+kalpa+vāta+dhūli+vidhūsara)

• merunadī – river of Meru (e.g., celestial Gaṅgā)
  noun (feminine)
  Compound of 'meru' (Mount Meru) and 'nadī' (river).
• kalpa – resembling, like, similar to
  adjective
• vāta – wind, air
  noun (masculine)
• dhūli – dust, powder
  noun (feminine)
• vidhūsara – dusty, gray, ash-colored
  adjective

क्वचित् (kvacit) - somewhere, in other places

(indeclinable)

विमानगीर्वाणप्रभाचित्रबलाङ्गकम् (vimānagīrvāṇaprabhācitrabalāṅgakam) - whose form (aṅgakam) is wonderfully varied (citra) and strong (bala), glowing with the divine splendor (prabhā) of celestial beings (gīrvāṇa) travelling in their aerial cars (vimāna) (whose body/form is variegated and powerful due to the splendor of deities in aerial cars)

(adjective)

Accusative, neuter, singular of vimānagīrvāṇaprabhācitrabalāṅgaka

vimānagīrvāṇaprabhācitrabalāṅgaka - whose body/form is variegated and powerful due to the splendor of deities in aerial cars

Compound type : bahuvrīhi (vimāna+gīrvāṇa+prabhā+citra+bala+aṅgaka)

• vimāna – aerial car, flying vehicle, palace
  noun (neuter)
• gīrvāṇa – deity, god, celestial being
  noun (masculine)
• prabhā – splendor, light, radiance, beauty
  noun (feminine)
• citra – variegated, diverse, wonderful, surprising
  adjective
• bala – strength, power, force
  noun (neuter)
• aṅgaka – body, limb, part (often diminutive)
  noun (neuter)