योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-70, verse-79

वस्त्रतन्तुविभेदेन परमारणमाशु मे ।
इदं संपद्यत इति भवत्यन्तर्हि निर्मला ॥ ७९ ॥

vastratantuvibhedena paramāraṇamāśu me ,
idaṃ saṃpadyata iti bhavatyantarhi nirmalā 79

79. vastratantuvibhedena paramāraṇam āśu me idam
sampadyate iti bhavati antar hi nirmalā

79. vastratantuvibhedena me āśu paramāraṇam.
idam sampadyate iti (cintayatām) antaḥ hi nirmalā bhavati.

79. Through the tearing apart of cloth threads, utter destruction quickly comes upon me. Yet, by thinking, 'This (purpose) is accomplished,' my inner self indeed becomes pure (nirmalā).

Words meanings summery:

• वस्त्रतन्तुविभेदेन (vastratantuvibhedena) - by the separation/tearing apart of cloth threads

• परमारणम् (paramāraṇam) - utter destruction, supreme killing

• आशु (āśu) - quickly, swiftly

• मे (me) - for me, to me, my

• इदम् (idam) - this (purpose/action) (this, this object/purpose)

• सम्पद्यते (sampadyate) - is accomplished, happens, comes about

• इति (iti) - thus, so

• भवति (bhavati) - becomes, happens, is

• अन्तर् (antar) - within, inside, internally

• हि (hi) - indeed, surely, for

• निर्मला (nirmalā) - pure, clean, spotless, unblemished

Words meanings and morphology

वस्त्रतन्तुविभेदेन (vastratantuvibhedena) - by the separation/tearing apart of cloth threads

(noun)

Instrumental, masculine, singular of vastratantuvibheda

vastratantuvibheda - separation of cloth threads, tearing apart of cloth threads

Compound type : tatpuruṣa (vastra+tantu+vibheda)

• vastra – cloth, garment
  noun (neuter)
• tantu – thread, fiber
  noun (masculine)
• vibheda – separation, division, tearing apart, breaking
  noun (masculine)

परमारणम् (paramāraṇam) - utter destruction, supreme killing

(noun)

Nominative, neuter, singular of paramāraṇa

paramāraṇa - utter destruction, supreme killing

Compound type : karmadhāraya (parama+māraṇa)

• parama – supreme, highest, ultimate
  adjective (masculine/feminine/neuter)
• māraṇa – killing, slaughter, destruction
  noun (neuter)

आशु (āśu) - quickly, swiftly

(indeclinable)

मे (me) - for me, to me, my

(pronoun)

Dative, singular of aham

aham - I, myself

Note: Can also be genitive.

इदम् (idam) - this (purpose/action) (this, this object/purpose)

(pronoun)

Nominative, neuter, singular of idam

idam - this, this one, this thing

सम्पद्यते (sampadyate) - is accomplished, happens, comes about

(verb)

3rd person , singular, middle, present indicative (laṭ) of sampad

Prefix: sam

Root: pad (class 4)

इति (iti) - thus, so

(indeclinable)

भवति (bhavati) - becomes, happens, is

(verb)

3rd person , singular, active, present indicative (laṭ) of bhū

Root: bhū (class 1)

अन्तर् (antar) - within, inside, internally

(indeclinable)

हि (hi) - indeed, surely, for

(indeclinable)

निर्मला (nirmalā) - pure, clean, spotless, unblemished

(adjective)

Nominative, feminine, singular of nirmala

nirmala - pure, clean, spotless, unblemished, faultless

Note: Implied noun like 'buddhi' (intellect) or 'mati' (mind) which are feminine.