योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-95, verse-15

अप्रतर्क्यमविज्ञेयं यच्छिवं शान्तमव्ययम् ।
तत्कथं कस्य केनैव कर्तृ भोक्तृ कदा भवेत् ॥ १५ ॥

apratarkyamavijñeyaṃ yacchivaṃ śāntamavyayam ,
tatkathaṃ kasya kenaiva kartṛ bhoktṛ kadā bhavet 15

15. apratarkyam avijñeyam yat śivam śāntam avyayam
tat katham kasya kena eva kartṛ bhoktṛ kadā bhavet

15. yat apratarkyam avijñeyam śivam śāntam avyayam
tat katham kasya kena eva kartṛ bhoktṛ kadā bhavet

15. How could that which is inconceivable, unknowable, blissful, peaceful, and imperishable be a doer or an enjoyer, and for whom, by whom, or when could it be so?

Words meanings summery:

• अप्रतर्क्यम् (apratarkyam) - incomprehensible, beyond reasoning

• अविज्ञेयम् (avijñeyam) - unknowable, not to be known

• यत् (yat) - that which (referring to the ultimate reality) (which, what, that)

• शिवम् (śivam) - blissful, embodying ultimate good (auspicious, benevolent, blissful, Shiva)

• शान्तम् (śāntam) - peaceful, tranquil, calm, quieted

• अव्ययम् (avyayam) - imperishable, immutable, indeclinable

• तत् (tat) - that

• कथम् (katham) - how, in what manner

• कस्य (kasya) - for whose benefit or by whose nature (of whom, whose)

• केन (kena) - by whom, by what

• एव (eva) - indeed, just, only

• कर्तृ (kartṛ) - doer, agent, creator

• भोक्तृ (bhoktṛ) - enjoyer, experiencer, consumer

• कदा (kadā) - when, at what time

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

Words meanings and morphology

अप्रतर्क्यम् (apratarkyam) - incomprehensible, beyond reasoning

(adjective)

Nominative, neuter, singular of apratarkya

apratarkya - incomprehensible, beyond reasoning, not to be conjectured

Gerundive

From a (negation) + pratarkya (to be reasoned). Root tark (to reason) + prati (prefix).

Compound type : nañ-tatpuruṣa (a+pratarkya)

• a – not, un-
  indeclinable
  negation particle
• pratarkya – to be reasoned, to be conjectured
  adjective (neuter)
  Gerundive
  From root tark with prefix prati
  Prefix: prati
  Root: tark (class 10)

Note: Qualifies the implied subject (Brahman).

अविज्ञेयम् (avijñeyam) - unknowable, not to be known

(adjective)

Nominative, neuter, singular of avijñeya

avijñeya - unknowable, not to be known, incomprehensible

Gerundive

From a (negation) + vijñeya (to be known). Root jñā (to know) + vi (prefix).

Compound type : nañ-tatpuruṣa (a+vijñeya)

• a – not, un-
  indeclinable
  negation particle
• vijñeya – to be known, comprehensible
  adjective (neuter)
  Gerundive
  From root jñā with prefix vi
  Prefix: vi
  Root: jñā (class 9)

Note: Qualifies the implied subject (Brahman).

यत् (yat) - that which (referring to the ultimate reality) (which, what, that)

(pronoun)

Nominative, neuter, singular of yad

yad - which, what, that

Relative pronoun.

Note: Refers to the implied subject.

शिवम् (śivam) - blissful, embodying ultimate good (auspicious, benevolent, blissful, Shiva)

(adjective)

Nominative, neuter, singular of śiva

śiva - auspicious, benevolent, blissful, propitious, Shiva (proper noun)

Note: Qualifies the implied subject.

शान्तम् (śāntam) - peaceful, tranquil, calm, quieted

(adjective)

Nominative, neuter, singular of śānta

śānta - peaceful, tranquil, calm, quieted, ceased

Past Passive Participle

From root śam (to be quiet, calm).

Root: śam (class 4)

अव्ययम् (avyayam) - imperishable, immutable, indeclinable

(adjective)

Nominative, neuter, singular of avyaya

avyaya - imperishable, immutable, indeclinable, eternal

From a (negation) + vyaya (perishable). Root ī (to go) + vi (prefix) + a (suffix).

Compound type : nañ-tatpuruṣa (a+vyaya)

• a – not, un-
  indeclinable
  negation particle
• vyaya – expense, loss, perishable
  noun (neuter)
  From root ī with prefix vi
  Prefix: vi
  Root: ī (class 2)

तत् (tat) - that

(pronoun)

Nominative, neuter, singular of tad

tad - that, that one

Demonstrative pronoun.

Note: Corresponds to yat.

कथम् (katham) - how, in what manner

(indeclinable)

Interrogative adverb.

कस्य (kasya) - for whose benefit or by whose nature (of whom, whose)

(pronoun)

Genitive, neuter, singular of kim

kim - who, what, which

Interrogative pronoun, masculine/neuter genitive singular.

केन (kena) - by whom, by what

(pronoun)

Instrumental, neuter, singular of kim

kim - who, what, which

Interrogative pronoun, masculine/neuter instrumental singular.

एव (eva) - indeed, just, only

(indeclinable)

Emphatic particle.

Note: Emphasizes kena.

कर्तृ (kartṛ) - doer, agent, creator

(noun)

Nominative, neuter, singular of kartṛ

kartṛ - doer, agent, creator, author

Agent noun

From root kṛ (to do) + tṛc suffix.

Root: kṛ (class 8)

भोक्तृ (bhoktṛ) - enjoyer, experiencer, consumer

(noun)

Nominative, neuter, singular of bhoktṛ

bhoktṛ - enjoyer, experiencer, consumer, eater

Agent noun

From root bhuj (to enjoy, eat) + tṛc suffix.

Root: bhuj (class 7)

कदा (kadā) - when, at what time

(indeclinable)

Interrogative adverb of time.

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

(verb)

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

Optative mood, 3rd person singular

Optative of bhū, parasmaipada.

Root: bhū (class 1)