योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-24, verse-19

उदितो न विकारार्को वासनारजनीक्षयः ।
अवस्तु वस्तुवद्बुद्धं मत्तश्चित्तमतंगजः ॥ १९ ॥

udito na vikārārko vāsanārajanīkṣayaḥ ,
avastu vastuvadbuddhaṃ mattaścittamataṃgajaḥ 19

19. uditaḥ na vikāra-arkaḥ vāsanā-rajanī-kṣayaḥ
avastu vastu-vat buddham mattaḥ citta-mataṅgajaḥ

19. vikāra-arkaḥ uditaḥ na vāsanā-rajanī-kṣayaḥ
avastu vastu-vat buddham citta-mataṅgajaḥ mattaḥ

19. The sun that would dispel mental disturbances has not risen, and thus there is no destruction of the night of subtle impressions (vāsanā). The unreal is perceived as real, and the mind, like an elephant, is utterly intoxicated.

Words meanings summery:

• उदितः (uditaḥ) - dawned, become manifest (risen, appeared, manifest, emerged)

• न (na) - not (not, no, nor)

• विकार-अर्कः (vikāra-arkaḥ) - the sun (of insight) that would dispel mental disturbances; such a sun has not risen (sun of modifications/disturbances)

• वासना-रजनी-क्षयः (vāsanā-rajanī-kṣayaḥ) - the end of the pervasive darkness of latent tendencies (destruction of the night of vāsanās (subtle impressions))

• अवस्तु (avastu) - that which is not truly existent (like the phenomenal world from an ultimate perspective) (unreal thing, non-entity, non-existent)

• वस्तु-वत् (vastu-vat) - as if it were a substantial or existent entity (like a real thing, as if real, really)

• बुद्धम् (buddham) - is taken to be, is considered (perceived, understood, known, thought)

• मत्तः (mattaḥ) - frenzied, deluded (intoxicated, maddened, proud, arrogant)

• चित्त-मतङ्गजः (citta-mataṅgajaḥ) - the mind, which is like a powerful, unruly elephant (mind-elephant, the elephant of the mind)

Words meanings and morphology

उदितः (uditaḥ) - dawned, become manifest (risen, appeared, manifest, emerged)

(adjective)

Nominative, masculine, singular of udita

udita - risen, appeared, manifest, emerged, said

Past Passive Participle

From root `i` (to go) with prefix `ud`.

Prefix: ud

Root: i (class 2)

Note: Qualifies `vikāra-arkaḥ`.

न (na) - not (not, no, nor)

(indeclinable)

विकार-अर्कः (vikāra-arkaḥ) - the sun (of insight) that would dispel mental disturbances; such a sun has not risen (sun of modifications/disturbances)

(noun)

Nominative, masculine, singular of vikāra-arka

vikāra-arka - sun of modifications/disturbances

Masculine nominative singular.

Compound type : ṣaṣṭhī-tatpuruṣa (vikāra+arka)

• vikāra – change, modification, alteration, disturbance, perversion
  noun (masculine)
  From root `kṛ` with prefix `vi`.
  Prefix: vi
  Root: kṛ (class 8)
• arka – sun, ray, light, flash
  noun (masculine)
  Root: arc (class 1)

Note: Subject of the first clause, combined with `uditaḥ na`.

वासना-रजनी-क्षयः (vāsanā-rajanī-kṣayaḥ) - the end of the pervasive darkness of latent tendencies (destruction of the night of vāsanās (subtle impressions))

(noun)

Nominative, masculine, singular of vāsanā-rajanī-kṣaya

vāsanā-rajanī-kṣaya - destruction of the night of subtle impressions

Masculine nominative singular.

Compound type : ṣaṣṭhī-tatpuruṣa (vāsanā+rajanī+kṣaya)

• vāsanā – subtle impression, latent tendency, desire, imagination
  noun (feminine)
  From root `vas` (to dwell).
  Root: vas (class 1)
• rajanī – night
  noun (feminine)
• kṣaya – destruction, end, loss, decay
  noun (masculine)
  From root `kṣi` (to waste away, destroy).
  Root: kṣi (class 1)

Note: Implied predicate `na asti` (is not present/has not occurred).

अवस्तु (avastu) - that which is not truly existent (like the phenomenal world from an ultimate perspective) (unreal thing, non-entity, non-existent)

(noun)

Nominative, neuter, singular of avastu

avastu - unreal thing, non-entity, non-existent

Negation (`a-`) of `vastu` (real thing).

Compound type : nañ-tatpuruṣa (a+vastu)

• a – not, un-
  indeclinable
  Negative particle.
• vastu – thing, object, reality, substance
  noun (neuter)

Note: Subject of the clause 'The unreal is perceived as real.'

वस्तु-वत् (vastu-vat) - as if it were a substantial or existent entity (like a real thing, as if real, really)

(indeclinable)

Suffix `vat` meaning 'like, as if'.

Note: Adverbial use.

बुद्धम् (buddham) - is taken to be, is considered (perceived, understood, known, thought)

(adjective)

Nominative, neuter, singular of buddha

buddha - awakened, enlightened, perceived, understood

Past Passive Participle

From root `budh` (to awaken, perceive).

Root: budh (class 1)

Note: Used impersonally or as a predicate to `avastu`.

मत्तः (mattaḥ) - frenzied, deluded (intoxicated, maddened, proud, arrogant)

(adjective)

Nominative, masculine, singular of matta

matta - intoxicated, maddened, proud, arrogant, lustful

Past Passive Participle

From root `mad` (to be drunk, rejoice, be proud).

Root: mad (class 4)

चित्त-मतङ्गजः (citta-mataṅgajaḥ) - the mind, which is like a powerful, unruly elephant (mind-elephant, the elephant of the mind)

(noun)

Nominative, masculine, singular of citta-mataṅgaja

citta-mataṅgaja - mind-elephant, the elephant of the mind

Masculine nominative singular.

Compound type : ṣaṣṭhī-tatpuruṣa (citta+mataṅgaja)

• citta – mind, consciousness, intellect
  noun (neuter)
  From root `cit` (to perceive, think).
  Root: cit (class 1)
• mataṅgaja – elephant (especially a wild or rutting one)
  noun (masculine)

Note: Subject of the second part of the second line.