योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-48, verse-38

वज्रभीत्येव पक्षौघपर्वतप्रकरः पुरः ।
स्वप्नदृष्टं जगदिव संकल्पपुरपूरवत् ॥ ३८ ॥

vajrabhītyeva pakṣaughaparvataprakaraḥ puraḥ ,
svapnadṛṣṭaṃ jagadiva saṃkalpapurapūravat 38

38. vajra-bhītyā iva pakṣa-ogha-parvata-prakaraḥ puraḥ
| svapna-dṛṣṭam jagat iva saṅkalpa-pura-pūra-vat ||

38. vajra-bhītyā iva,
pakṣa-ogha-parvata-prakaraḥ puraḥ [adṛśyatām agacchat].
svapna-dṛṣṭam jagat iva,
saṅkalpa-pura-pūra-vat [adṛśyatām agacchat].

38. It vanished as if a multitude of mountains with wings, out of fear of the thunderbolt (vajra), had disappeared earlier; it was like a world seen in a dream or like cities fully formed by mere imagination.

Words meanings summery:

• वज्र-भीत्या (vajra-bhītyā) - by fear of the thunderbolt

• इव (iva) - like, as, as if

• पक्ष-ओघ-पर्वत-प्रकरः (pakṣa-ogha-parvata-prakaraḥ) - a collection of winged mountains (a multitude of mountains with wings)

• पुरः (puraḥ) - before, formerly, previously

• स्वप्न-दृष्टम् (svapna-dṛṣṭam) - seen in a dream

• जगत् (jagat) - world, universe

• इव (iva) - like, as, as if

• सङ्कल्प-पुर-पूर-वत् (saṅkalpa-pura-pūra-vat) - like cities fully formed by mere imagination (like a city of imagination that is full or complete)

Words meanings and morphology

वज्र-भीत्या (vajra-bhītyā) - by fear of the thunderbolt

(noun)

Instrumental, feminine, singular of vajra-bhīti

vajra-bhīti - fear of the thunderbolt

Compound type : tatpuruṣa (vajra+bhīti)

• vajra – thunderbolt, diamond
  noun (masculine)
• bhīti – fear, dread
  noun (feminine)
  Root: bhī (class 3)

इव (iva) - like, as, as if

(indeclinable)

पक्ष-ओघ-पर्वत-प्रकरः (pakṣa-ogha-parvata-prakaraḥ) - a collection of winged mountains (a multitude of mountains with wings)

(noun)

Nominative, masculine, singular of pakṣa-ogha-parvata-prakara

pakṣa-ogha-parvata-prakara - a multitude of mountains with wings

Compound type : bahuvrihi or tatpuruṣa (pakṣa+ogha+parvata+prakara)

• pakṣa – wing, side
  noun (masculine)
• ogha – multitude, flood, stream
  noun (masculine)
• parvata – mountain
  noun (masculine)
• prakara – heap, multitude, collection
  noun (masculine)

पुरः (puraḥ) - before, formerly, previously

(indeclinable)

स्वप्न-दृष्टम् (svapna-dṛṣṭam) - seen in a dream

(adjective)

Nominative, neuter, singular of svapna-dṛṣṭa

svapna-dṛṣṭa - seen in a dream

Past Passive Participle

Compound adjective, where 'dṛṣṭa' is a past passive participle of 'dṛś' (to see)

Compound type : tatpuruṣa (svapna+dṛṣṭa)

• svapna – dream, sleep
  noun (masculine)
  Root: svap (class 2)
• dṛṣṭa – seen, perceived
  adjective (neuter)
  Past Passive Participle
  From root dṛś (to see)
  Root: dṛś (class 1)

जगत् (jagat) - world, universe

(noun)

Nominative, neuter, singular of jagat

jagat - world, universe, moving

Present active participle of gam, used as a noun.

Root: gam (class 1)

इव (iva) - like, as, as if

(indeclinable)

सङ्कल्प-पुर-पूर-वत् (saṅkalpa-pura-pūra-vat) - like cities fully formed by mere imagination (like a city of imagination that is full or complete)

(indeclinable)

Compound type : tatpuruṣa (saṅkalpa+pura+pūra)

• saṅkalpa – intention, will, imagination, determination
  noun (masculine)
  Prefix: sam
  Root: kḷp (class 1)
• pura – city, town
  noun (neuter)
• pūra – fullness, completion, abundance, stream
  noun (masculine)
  From root pṝ (to fill)
  Root: pṝ (class 9)
• vat – like, as
  suffix
  Indeclinable suffix denoting similarity, appended to nouns.