योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-14, verse-4

सिद्धानध्यासितोत्तुङ्गशिलाशकलविष्टरान् ।
धृताकारानिवोत्साहान्हेलादृष्टजगत्त्रयान् ॥ ४ ॥

siddhānadhyāsitottuṅgaśilāśakalaviṣṭarān ,
dhṛtākārānivotsāhānhelādṛṣṭajagattrayān 4

4. siddhān adhyāsitottuṅgaśilāśakalaviṣṭarān
dhṛtākārān iva utsāhān helādṛṣṭajagattrayān

4. siddhān adhyāsitottuṅgaśilāśakalaviṣṭarān
dhṛtākārān iva utsāhān helādṛṣṭajagattrayān

4. Those whose lofty seats, made of rock slabs, had been occupied by perfected beings (siddhas); appearing as if enthusiasms (utsāha) had taken physical form; and who had surveyed the three worlds with ease.

Words meanings summery:

• सिद्धान् (siddhān) - perfected beings (referring to Yogis or divine beings) (perfected ones, accomplished ones, siddhas)

• अध्यासितोत्तुङ्गशिलाशकलविष्टरान् (adhyāsitottuṅgaśilāśakalaviṣṭarān) - (referring to elephants) whose high rock-slab seats were occupied by perfected beings (siddhas) (whose lofty rock-slab seats were occupied)

• धृताकारान् (dhṛtākārān) - (referring to enthusiasms) those that have taken form (those who have assumed a form, embodied)

• इव (iva) - like, as if, as

• उत्साहान् (utsāhān) - great energy or drive (as a personification) (enthusiasms, energies, efforts)

• हेलादृष्टजगत्त्रयान् (helādṛṣṭajagattrayān) - those who have seen the three worlds with ease

Words meanings and morphology

सिद्धान् (siddhān) - perfected beings (referring to Yogis or divine beings) (perfected ones, accomplished ones, siddhas)

(noun)

Accusative, masculine, plural of siddha

siddha - accomplished, perfected, successful; a perfected being (siddha)

Past Passive Participle

derived from root sidh (to accomplish)

Root: sidh (class 1)

अध्यासितोत्तुङ्गशिलाशकलविष्टरान् (adhyāsitottuṅgaśilāśakalaviṣṭarān) - (referring to elephants) whose high rock-slab seats were occupied by perfected beings (siddhas) (whose lofty rock-slab seats were occupied)

(adjective)

Accusative, masculine, plural of adhyāsitottuṅgaśilāśakalaviṣṭara

adhyāsitottuṅgaśilāśakalaviṣṭara - (one) whose high rock-slab seats were occupied

Compound type : bahuvrīhi (adhyāsita+uttuṅga+śilāśakala+viṣṭara)

• adhyāsita – occupied, sat upon, presided over
  participle
  Past Passive Participle
  derived from root ās (to sit) with upasarga adhi
  Prefix: adhi
  Root: ās (class 2)
• uttuṅga – very high, lofty, prominent
  adjective
  Prefix: ud
• śilāśakala – rock slab, piece of rock
  noun (neuter)
• viṣṭara – seat, mat, bed
  noun (masculine)

धृताकारान् (dhṛtākārān) - (referring to enthusiasms) those that have taken form (those who have assumed a form, embodied)

(adjective)

Accusative, masculine, plural of dhṛtākāra

dhṛtākāra - having taken a form, embodied

Compound type : bahuvrīhi (dhṛta+ākāra)

• dhṛta – held, borne, assumed, taken
  participle
  Past Passive Participle
  derived from root dhṛ (to hold, bear)
  Root: dhṛ (class 1)
• ākāra – form, shape, appearance, embodiment
  noun (masculine)

Note: Qualifies 'utsāhān'.

इव (iva) - like, as if, as

(indeclinable)

उत्साहान् (utsāhān) - great energy or drive (as a personification) (enthusiasms, energies, efforts)

(noun)

Accusative, masculine, plural of utsāha

utsāha - enthusiasm, energy, effort, vigor

हेलादृष्टजगत्त्रयान् (helādṛṣṭajagattrayān) - those who have seen the three worlds with ease

(adjective)

Accusative, masculine, plural of helādṛṣṭajagattraya

helādṛṣṭajagattraya - (one) by whom the three worlds have been seen with ease

Compound type : bahuvrīhi (helā+dṛṣṭa+jagattraya)

• helā – ease, sport, disregard, play
  noun (feminine)
• dṛṣṭa – seen, perceived
  participle
  Past Passive Participle
  derived from root dṛś (to see)
  Root: dṛś (class 1)
• jagattraya – three worlds (heaven, earth, underworld)
  noun (neuter)