योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-81, verse-29

जडयोरुपलम्भाय चिदादित्यः किलैतयोः ।
यदा तपति तेनैते लब्धसत्तैकतां गते ॥ २९ ॥

jaḍayorupalambhāya cidādityaḥ kilaitayoḥ ,
yadā tapati tenaite labdhasattaikatāṃ gate 29

29. jaḍayoḥ upalambhāya cidādityaḥ kila etayoḥ |
yadā tapati tena ete labdhasattāikatām gate ||

29. kila cidādityaḥ jaḍayoḥ etayoḥ upalambhāya (asti).
yadā tapati,
tena ete labdhasattāikatām gate (bhavataḥ).

29. Indeed, for the apprehension of the two inert (jaḍa) phenomena, the sun of consciousness (cit-āditya) exists for them. When that (sun of consciousness) shines, by that very act, these two (inert phenomena) attain a singular existence (sattā) and oneness.

Words meanings summery:

• जडयोः (jaḍayoḥ) - of the two inert (phenomena, referring to light and darkness) (of the two inert, between the two inert)

• उपलम्भाय (upalambhāya) - for the apprehension, for the perception (for the apprehension, for the perception, for the attainment)

• चिदादित्यः (cidādityaḥ) - the sun of consciousness

• किल (kila) - indeed, certainly (indeed, certainly, reportedly)

• एतयोः (etayoḥ) - for these two (inert phenomena) (of these two, for these two, between these two)

• यदा (yadā) - when (when, at which time)

• तपति (tapati) - shines (as the sun) (shines, burns, heats, performs austerity (tapas))

• तेन (tena) - by that (shining), by that means (by that, therefore)

• एते (ete) - these two (inert phenomena) (these two)

• लब्धसत्ताइकताम् (labdhasattāikatām) - a singular existence and oneness (the state of having attained a single existence, oneness of being)

• गते (gate) - attained, reached (a state) (gone, attained, reached)

Words meanings and morphology

जडयोः (jaḍayoḥ) - of the two inert (phenomena, referring to light and darkness) (of the two inert, between the two inert)

(adjective)

Genitive, masculine, dual of jaḍa

jaḍa - inert, insentient, dull, stupid, cold

उपलम्भाय (upalambhāya) - for the apprehension, for the perception (for the apprehension, for the perception, for the attainment)

(noun)

Dative, masculine, singular of upalambha

upalambha - perception, apprehension, attainment, discovery

From upa-√labh (to obtain, perceive) + ghañ suffix.

Prefix: upa

Root: labh (class 1)

चिदादित्यः (cidādityaḥ) - the sun of consciousness

(noun)

Nominative, masculine, singular of cidāditya

cidāditya - sun of consciousness

Compound type : tatpurusha (cit+āditya)

• cit – consciousness, knowledge, understanding
  noun (feminine)
• āditya – sun, son of Aditi
  noun (masculine)

Note: Sandhi: cit + ādityaḥ -> cidādityaḥ.

किल (kila) - indeed, certainly (indeed, certainly, reportedly)

(indeclinable)

Emphatic particle.

एतयोः (etayoḥ) - for these two (inert phenomena) (of these two, for these two, between these two)

(pronoun)

Genitive, masculine, dual of etad

etad - this, these

Pronominal stem.

यदा (yadā) - when (when, at which time)

(indeclinable)

Adverb of time.

तपति (tapati) - shines (as the sun) (shines, burns, heats, performs austerity (tapas))

(verb)

3rd person , singular, active, present (laṭ) of tap

Present Active Indicative

From root √tap, parasmaipada.

Root: tap (class 1)

तेन (tena) - by that (shining), by that means (by that, therefore)

(pronoun)

Instrumental, neuter, singular of tad

tad - that, those

Pronominal stem.

एते (ete) - these two (inert phenomena) (these two)

(pronoun)

Nominative, neuter, dual of etad

etad - this, these

Pronominal stem.

लब्धसत्ताइकताम् (labdhasattāikatām) - a singular existence and oneness (the state of having attained a single existence, oneness of being)

(noun)

Accusative, feminine, singular of labdhasattāikatā

labdhasattāikatā - state of having obtained oneness of being, unified existence

Bahuvrīhi compound, meaning 'that for which singular existence (ekatā) and being (sattā) have been obtained (labdha)'.

Compound type : bahuvrīhi (labdha+sattāekatā)

• labdha – obtained, gained, acquired
  adjective
  Past Passive Participle
  From root √labh (to obtain) + -ta suffix.
  Root: labh (class 1)
• sattāekatā – oneness of being, singular existence
  noun (feminine)
  Tatpurusha compound (ekatā of sattā).

Note: Object of the verb gate (which is a participle here, meaning 'gone into').

गते (gate) - attained, reached (a state) (gone, attained, reached)

(adjective)

Nominative, neuter, dual of gata

gata - gone, gone to, obtained, reached, become

Past Passive Participle

From root √gam (to go) + -ta suffix.

Root: gam (class 1)

Note: Functions here almost like a predicate adjective, or part of a periphrastic passive verb. Implies bhavataḥ (they become).