योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-90, verse-15

एष साधो मनोनाशो नष्टं चेह मनो भवेत् ।
चित्तनाशदशा चैषा जीवन्मुक्तस्य विद्यते ॥ १५ ॥

eṣa sādho manonāśo naṣṭaṃ ceha mano bhavet ,
cittanāśadaśā caiṣā jīvanmuktasya vidyate 15

15. eṣa sādho manonāśaḥ naṣṭam ca iha manaḥ bhavet
cittanāśadaśā ca eṣā jīvanmuktasya vidyate

15. sādho eṣa manonāśaḥ ca iha manaḥ naṣṭam bhavet
ca eṣā cittanāśadaśā jīvanmuktasya vidyate

15. O sage, this is the dissolution of the mind (manonāśa). And if the mind is indeed dissolved in this world, then this very state of mind's dissolution (cittanāśadaśā) is found in one who is liberated while living (jīvanmukta).

Words meanings summery:

• एष (eṣa) - this (masculine nominative singular)

• साधो (sādho) - O good one, O sage

• मनोनाशः (manonāśaḥ) - dissolution or transcendence of the mind (manonāśa) (destruction of the mind, dissolution of the mind)

• नष्टम् (naṣṭam) - dissolved, transcended (destroyed, lost, vanished)

• च (ca) - and, also

• इह (iha) - here, in this world

• मनः (manaḥ) - mind, intellect, consciousness

• भवेत् (bhavet) - should be, may be, would be

• चित्तनाशदशा (cittanāśadaśā) - state of mind's dissolution (cittanāśadaśā) (state of mind's destruction/dissolution)

• च (ca) - and, also

• एषा (eṣā) - this (feminine nominative singular)

• जीवन्मुक्तस्य (jīvanmuktasya) - of one who has achieved liberation (mokṣa) while still embodied (jīvanmukta) (of one liberated while living)

• विद्यते (vidyate) - exists, is found, is present

Words meanings and morphology

एष (eṣa) - this (masculine nominative singular)

(pronoun)

Nominative, masculine, singular of etad

etad - this, this one (demonstrative pronoun)

साधो (sādho) - O good one, O sage

(noun)

Vocative, masculine, singular of sādhu

sādhu - good, virtuous, righteous, holy man, sage

मनोनाशः (manonāśaḥ) - dissolution or transcendence of the mind (manonāśa) (destruction of the mind, dissolution of the mind)

(noun)

Nominative, masculine, singular of manonāśa

manonāśa - destruction of the mind, dissolution of thought, cessation of mental activity

Compound type : tatpuruṣa (manas+nāśa)

• manas – mind, intellect, understanding, thought
  noun (neuter)
  Root: man (class 4)
• nāśa – destruction, loss, disappearance, ruin
  noun (masculine)
  Root: naś (class 4)

नष्टम् (naṣṭam) - dissolved, transcended (destroyed, lost, vanished)

(adjective)

Nominative, neuter, singular of naṣṭa

naṣṭa - destroyed, lost, vanished, perished, ruined

Past Passive Participle

Derived from root 'naś' (to perish, to be lost) + kta suffix.

Root: naś (class 4)

च (ca) - and, also

(indeclinable)

इह (iha) - here, in this world

(indeclinable)

मनः (manaḥ) - mind, intellect, consciousness

(noun)

Nominative, neuter, singular of manas

manas - mind, intellect, understanding, thought, consciousness

Root: man (class 4)

भवेत् (bhavet) - should be, may be, would be

(verb)

3rd person , singular, active, potential (vidhi-liṅ) of bhū

Root: bhū (class 1)

चित्तनाशदशा (cittanāśadaśā) - state of mind's dissolution (cittanāśadaśā) (state of mind's destruction/dissolution)

(noun)

Nominative, feminine, singular of cittanāśadaśā

cittanāśadaśā - state of mind's destruction, condition of mental dissolution

Compound type : tatpuruṣa (citta+nāśa+daśā)

• citta – mind, consciousness, thought
  noun (neuter)
  Past Passive Participle
  Derived from root 'cit' (to perceive, to understand) + kta suffix.
  Root: cit (class 1)
• nāśa – destruction, loss, disappearance
  noun (masculine)
  Root: naś (class 4)
• daśā – state, condition, situation, period
  noun (feminine)

च (ca) - and, also

(indeclinable)

एषा (eṣā) - this (feminine nominative singular)

(pronoun)

Nominative, feminine, singular of etad

etad - this, this one (demonstrative pronoun)

जीवन्मुक्तस्य (jīvanmuktasya) - of one who has achieved liberation (mokṣa) while still embodied (jīvanmukta) (of one liberated while living)

(noun)

Genitive, masculine, singular of jīvanmukta

jīvanmukta - one liberated while living, a liberated soul (mokṣa) in the embodied state

Compound type : karmadhāraya (jīvan+mukta)

• jīvan – living, alive
  adjective (masculine)
  Present Active Participle
  Derived from root 'jīv' (to live) + śatṛ suffix.
  Root: jīv (class 1)
• mukta – liberated, released, freed
  adjective (masculine)
  Past Passive Participle
  Derived from root 'muc' (to release, to free) + kta suffix.
  Root: muc (class 6)

विद्यते (vidyate) - exists, is found, is present

(verb)

3rd person , singular, middle, present (lat) of vid

Root: vid (class 4)