योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-187, verse-57

किल तस्यामवस्थायां कोऽपरः शब्दकृद्भवेत् ।
यथा तथा तदाद्यापि द्वैतैक्यस्यात्यसंभवात् ॥ ५७ ॥

kila tasyāmavasthāyāṃ ko'paraḥ śabdakṛdbhavet ,
yathā tathā tadādyāpi dvaitaikyasyātyasaṃbhavāt 57

57. kila tasyām avasthāyām kaḥ aparaḥ śabdakṛt bhavet
yathā tathā tadā adya api dvaitaikyasya atyasaṃbhavāt

57. kila tasyām avasthāyām kaḥ aparaḥ śabdakṛt bhavet? yathā tathā,
tadā adya api,
dvaitaikyasya atyasaṃbhavāt.

57. Indeed, in that supreme state, who else could possibly be the producer of sound (śabdakṛt)? However it may be, even then and even now, (this is true) because the union of duality (dvaitya-aikya) is utterly impossible.

Words meanings summery:

• किल (kila) - indeed, they say (indicating a well-known truth) (indeed, they say, surely, an emphatic particle)

• तस्याम् (tasyām) - in that (supreme) (in that, of that (feminine))

• अवस्थायाम् (avasthāyām) - in that state of being or consciousness (in the state, in the condition)

• कः (kaḥ) - who else (interrogative) (who, what)

• अपरः (aparaḥ) - else, another (other, another, second)

• शब्दकृत् (śabdakṛt) - sound-maker, producer of sound

• भवेत् (bhavet) - could possibly be (may be, could be, should be)

• यथा (yathā) - however (it may be) (as, in which way, like)

• तथा (tathā) - however (it may be) - completing the `yathā tathā` idiom (so, in that way, thus)

• तदा (tadā) - even then (referring to the state mentioned) (then, at that time)

• अद्य (adya) - even now (today, now)

• अपि (api) - even (also, even, too)

• द्वैतैक्यस्य (dvaitaikyasya) - of the union of duality, of the oneness of duality

• अत्यसंभवात् (atyasaṁbhavāt) - due to extreme impossibility, from utter impossibility

Words meanings and morphology

किल (kila) - indeed, they say (indicating a well-known truth) (indeed, they say, surely, an emphatic particle)

(indeclinable)

particle

तस्याम् (tasyām) - in that (supreme) (in that, of that (feminine))

(pronoun)

Locative, feminine, singular of tad

tad - that, she, it

demonstrative pronoun

Note: Refers to 'avasthā' (state).

अवस्थायाम् (avasthāyām) - in that state of being or consciousness (in the state, in the condition)

(noun)

Locative, feminine, singular of avasthā

avasthā - state, condition, situation

From root sthā (to stand) with prefix ava

Prefix: ava

Root: sthā (class 1)

Note: Refers to a transcendental or absolute state, as implied by the context of non-duality.

कः (kaḥ) - who else (interrogative) (who, what)

(pronoun)

Nominative, masculine, singular of kim

kim - who, what, which

interrogative pronoun

अपरः (aparaḥ) - else, another (other, another, second)

(adjective)

Nominative, masculine, singular of apara

apara - other, another, different, subsequent

Note: Modifies `śabdakṛt`.

शब्दकृत् (śabdakṛt) - sound-maker, producer of sound

(noun)

Nominative, masculine, singular of śabdakṛt

śabdakṛt - sound-maker, producer of sound

compound of śabda (sound) and kṛt (maker)

Compound type : tatpuruṣa (śabda+kṛt)

• śabda – sound, word
  noun (masculine)
• kṛt – maker, doer, causing
  adjective (masculine)
  root kṛ (to do, make) + nominalizing suffix
  Root: kṛ (class 8)

भवेत् (bhavet) - could possibly be (may be, could be, should be)

(verb)

3rd person , singular, active, optative (vidhiliṅ) of bhū

optative active 3rd singular

Root: bhū (class 1)

यथा (yathā) - however (it may be) (as, in which way, like)

(indeclinable)

relative adverb

तथा (tathā) - however (it may be) - completing the `yathā tathā` idiom (so, in that way, thus)

(indeclinable)

demonstrative adverb

तदा (tadā) - even then (referring to the state mentioned) (then, at that time)

(indeclinable)

adverb of time derived from 'tad'

अद्य (adya) - even now (today, now)

(indeclinable)

adverb of time

अपि (api) - even (also, even, too)

(indeclinable)

particle

द्वैतैक्यस्य (dvaitaikyasya) - of the union of duality, of the oneness of duality

(noun)

Genitive, neuter, singular of dvaitaikya

dvaitaikya - union of duality, oneness of duality

Compound of dvaita (duality) and aikya (oneness, union)

Compound type : tatpuruṣa (dvaita+aikya)

• dvaita – duality, dualism
  noun (neuter)
  derived from dvi (two)
• aikya – oneness, unity, identity
  noun (neuter)
  derived from eka (one)

अत्यसंभवात् (atyasaṁbhavāt) - due to extreme impossibility, from utter impossibility

(noun)

Ablative, masculine, singular of atyasaṃbhava

atyasaṁbhava - extreme impossibility, utter impossibility

compound of ati (excessive), a (negation), saṃbhava (possibility)

Compound type : pra-tatpuruṣa (ati) and nañ-tatpuruṣa (a-saṃbhava) (ati+asaṃbhava)

• ati – excessive, beyond
  indeclinable
  prefix indicating excess or transgression
• asaṃbhava – impossibility, non-existence
  noun (masculine)
  negation of saṃbhava (possibility); a (not) + sam (together) + bhū (to be)
  Prefixes: a+sam
  Root: bhū (class 1)

Note: Indicates the reason or cause.