योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-26, verse-33

शिलाशैलकवप्रेषु साश्वभूतो दिवाकरः ।
वनपाषाणवन्नित्यमवशः परिचोद्यते ॥ ३३ ॥

śilāśailakavapreṣu sāśvabhūto divākaraḥ ,
vanapāṣāṇavannityamavaśaḥ paricodyate 33

33. śilāśailakavapreṣu sāśvabhūtaḥ divākaraḥ
vanapāṣāṇavat nityam avaśaḥ paricodyate

33. divākaraḥ sāśvabhūtaḥ śilāśailakavapreṣu
vanapāṣāṇavat nityam avaśaḥ paricodyate

33. The sun, appearing with its steeds upon rocky mountains and cliffs, is perpetually driven around against its will, just like a stone in a forest.

Words meanings summery:

• शिलाशैलकवप्रेषु (śilāśailakavapreṣu) - on the stony slopes and cliffs (on stone-mountain-cliffs, on rocky mountain ramparts)

• साश्वभूतः (sāśvabhūtaḥ) - appearing with its steeds/rays (endowed with horses, having horses, existing with horses, becoming a horse, having rays (like horses))

• दिवाकरः (divākaraḥ) - the sun (sun, day-maker)

• वनपाषाणवत् (vanapāṣāṇavat) - just like a stone in a forest (like a forest stone, like a stone in a forest)

• नित्यम् (nityam) - perpetually, constantly (always, constantly, perpetually)

• अवशः (avaśaḥ) - against its will, helplessly (helpless, dependent, not by one's own will, uncontrolled)

• परिचोद्यते (paricodyate) - is driven around (is driven, is impelled, is urged on, is commanded)

Words meanings and morphology

शिलाशैलकवप्रेषु (śilāśailakavapreṣu) - on the stony slopes and cliffs (on stone-mountain-cliffs, on rocky mountain ramparts)

(noun)

Locative, masculine, plural of śilāśailakavapra

śilāśailakavapra - stony mountain rampart/cliff

Compound type : tatpuruṣa (śilā+śaila+kavapra)

• śilā – stone, rock
  noun (feminine)
• śaila – mountain, rock
  noun (masculine)
• kavapra – cliff, rampart, dam, mountain slope
  noun (masculine)

Note: Refers to the location where the sun is seen.

साश्वभूतः (sāśvabhūtaḥ) - appearing with its steeds/rays (endowed with horses, having horses, existing with horses, becoming a horse, having rays (like horses))

(adjective)

Nominative, masculine, singular of sāśvabhūta

sāśvabhūta - having horses, existing as a horse, having rays

Formed from 'sa' (with) + 'aśva' (horse/ray) + 'bhūta' (become, existing).

Compound type : bahuvrihi (sa+aśva+bhūta)

• sa – with, together with
  indeclinable
• aśva – horse, steed, ray (of light)
  noun (masculine)
• bhūta – become, existing, past passive participle of 'bhū' (to be)
  adjective (neuter)
  Past Passive Participle
  From root 'bhū' + suffix 'kta'
  Root: bhū (class 1)

Note: Qualifies 'divākaraḥ'.

दिवाकरः (divākaraḥ) - the sun (sun, day-maker)

(noun)

Nominative, masculine, singular of divākara

divākara - sun, day-maker

From 'divā' (by day) + 'kara' (maker).

Compound type : tatpuruṣa (divā+kara)

• divā – by day, during the day
  indeclinable
• kara – maker, doer, hand, ray
  noun (masculine)
  Derived from root 'kṛ' (to do, make)
  Root: kṛ (class 8)

Note: Subject of the sentence.

वनपाषाणवत् (vanapāṣāṇavat) - just like a stone in a forest (like a forest stone, like a stone in a forest)

(indeclinable)

Formed by adding the suffix '-vat' (like, similar to) to the compound noun 'vanapāṣāṇa'.

Compound type : tatpuruṣa (vana+pāṣāṇa)

• vana – forest, wood
  noun (neuter)
• pāṣāṇa – stone, rock
  noun (masculine)

Note: Acts as an adverbial comparison.

नित्यम् (nityam) - perpetually, constantly (always, constantly, perpetually)

(indeclinable)

Note: Adverb modifying 'paricodyate'.

अवशः (avaśaḥ) - against its will, helplessly (helpless, dependent, not by one's own will, uncontrolled)

(adjective)

Nominative, masculine, singular of avaśa

avaśa - helpless, uncontrolled, dependent, not by one's own will

Formed with negative prefix 'a-' and 'vaśa' (will, control).

Compound type : nañ-tatpuruṣa (a+vaśa)

• a – not, un-
  indeclinable
  Negative prefix.
• vaśa – will, control, power, subjugation
  noun (masculine)
  Root: vaś (class 2)

Note: Qualifies 'divākaraḥ'.

परिचोद्यते (paricodyate) - is driven around (is driven, is impelled, is urged on, is commanded)

(verb)

3rd person , singular, passive, present indicative (laṭ) of cud

passive voice, present indicative

Root 'cud' (class 10, often 'codayati') with prefix 'pari'. Passive formation 'cudyate'.

Prefix: pari

Root: cud (class 10)

Note: The main verb of the sentence.