योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-103, verse-25

चित्तस्पन्दवियुक्तस्य तस्यास्पन्दितसच्चितः ।
द्वित्वैकत्वविहीनस्य समस्याचलसंस्थितेः ॥ २५ ॥

cittaspandaviyuktasya tasyāspanditasaccitaḥ ,
dvitvaikatvavihīnasya samasyācalasaṃsthiteḥ 25

25. cittaspandaviyuktasya tasya aspanditasaccitaḥ |
dvitvaikatvavihīnasya samasthācalasaṃsthiteḥ ||

25. tasya cittaspandaviyuktasya aspanditasaccitaḥ
dvitvaikatvavihīnasya samasthācalasaṃsthiteḥ

25. Of him who is devoid of mental agitation, whose true consciousness (sat-cit) is unagitated, who is beyond duality and unity, and who is established in an unmoving state of equipoise.

Words meanings summery:

• चित्तस्पन्दवियुक्तस्य (cittaspandaviyuktasya) - of one who is devoid of mental agitation

• तस्य (tasya) - of him, his, of that

• अस्पन्दितसच्चितः (aspanditasaccitaḥ) - of one whose true consciousness is unagitated

• द्वित्वैकत्वविहीनस्य (dvitvaikatvavihīnasya) - of one who is devoid of duality and unity, beyond dualistic distinctions

• समस्थाचलसंस्थितेः (samasthācalasaṁsthiteḥ) - of one who is established in an unmoving state of equipoise

Words meanings and morphology

चित्तस्पन्दवियुक्तस्य (cittaspandaviyuktasya) - of one who is devoid of mental agitation

(adjective)

Genitive, masculine, singular of cittaspandaviyukta

cittaspandaviyukta - devoid of mental vibration/agitation

Compound type : bahuvrihi (citta+spanda+viyukta)

• citta – mind, consciousness, thought
  noun (neuter)
  from root cit + ta
  Root: cit (class 1)
• spanda – vibration, throbbing, movement, agitation
  noun (masculine)
  from root spand + a
  Root: spand (class 1)
• viyukta – separated from, devoid of, free from
  adjective
  past passive participle
  from root yuj with vi
  Prefix: vi
  Root: yuj (class 7)

तस्य (tasya) - of him, his, of that

(pronoun)

Genitive, masculine/neuter, singular of tad

tad - that, he, she, it

अस्पन्दितसच्चितः (aspanditasaccitaḥ) - of one whose true consciousness is unagitated

(adjective)

Genitive, masculine, singular of aspanditasaccit

aspanditasaccit - one whose true consciousness is unagitated/still

Compound type : bahuvrihi (a+spandita+sat+cit)

• a – not, un-
  indeclinable
  negative prefix
• spandita – agitated, throbbing, moved
  adjective
  past passive participle
  from root spand + ta
  Root: spand (class 1)
• sat – being, existence, reality, good
  noun (neuter)
  present active participle
  from root as
  Root: as (class 2)
• cit – consciousness, intelligence, mind
  noun (feminine)
  from root cit
  Root: cit (class 1)

द्वित्वैकत्वविहीनस्य (dvitvaikatvavihīnasya) - of one who is devoid of duality and unity, beyond dualistic distinctions

(adjective)

Genitive, masculine, singular of dvitvaikatvavihīna

dvitvaikatvavihīna - devoid of duality and unity

Compound type : bahuvrihi (dvitva+ekatva+vihīna)

• dvitva – duality, twoness
  noun (neuter)
  from dvi + tva
• ekatva – unity, oneness
  noun (neuter)
  from eka + tva
• vihīna – devoid of, destitute of, free from
  adjective
  past passive participle
  from root hā with vi
  Prefix: vi
  Root: hā (class 3)

समस्थाचलसंस्थितेः (samasthācalasaṁsthiteḥ) - of one who is established in an unmoving state of equipoise

(adjective)

Genitive, masculine, singular of samasthācalasaṃsthita

samasthācalasaṁsthita - established in a state of unmoving equipoise

Compound type : bahuvrihi (samastha+acala+saṃsthita)

• samastha – standing in equipoise, remaining in the same state
  adjective
  from sama + stha
  Root: sthā (class 1)
• acala – immovable, unmoving, steady
  adjective
  from a + cala
  Prefix: a
  Root: cal (class 1)
• saṃsthita – established, situated, fixed
  adjective
  past passive participle
  from root sthā with sam
  Prefix: sam
  Root: sthā (class 1)