योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-27, verse-18

चिदहं सर्वगो व्यापी नित्यानन्दमयात्मकः ।
विकल्पकलनातीतो द्वितीयांशविवर्जितः ॥ १८ ॥

cidahaṃ sarvago vyāpī nityānandamayātmakaḥ ,
vikalpakalanātīto dvitīyāṃśavivarjitaḥ 18

18. cit aham sarvagaḥ vyāpī nityānandamayātmakaḥ
vikalpakalanātītaḥ dvitīyāṃśavivarjitaḥ

18. aham cit sarvagaḥ vyāpī nityānandamayātmakaḥ
vikalpakalanātītaḥ dvitīyāṃśavivarjitaḥ

18. I am consciousness (cit), all-pervading and expansive, whose nature (ātman) is eternal bliss. I am beyond mental constructions and differentiations, and devoid of any second part.

Words meanings summery:

• चित् (cit) - consciousness, intelligence

• अहम् (aham) - The speaker, the absolute 'I'. (I, myself)

• सर्वगः (sarvagaḥ) - all-pervading, omnipresent

• व्यापी (vyāpī) - pervasive, extensive, all-encompassing

• नित्यानन्दमयात्मकः (nityānandamayātmakaḥ) - whose nature is eternal bliss

• विकल्पकलनातीतः (vikalpakalanātītaḥ) - beyond mental constructions and differentiations

• द्वितीयांशविवर्जितः (dvitīyāṁśavivarjitaḥ) - devoid of any second part, without a second

Words meanings and morphology

चित् (cit) - consciousness, intelligence

(noun)

Nominative, feminine, singular of cit

cit - consciousness, intelligence, thought

अहम् (aham) - The speaker, the absolute 'I'. (I, myself)

(pronoun)

Nominative, singular of asmad

asmad - I

सर्वगः (sarvagaḥ) - all-pervading, omnipresent

(adjective)

Nominative, masculine, singular of sarvaga

sarvaga - all-going, all-pervading, omnipresent

Derived from sarva + ga (root gam).

Compound type : tatpuruṣa (sarva+ga)

• sarva – all, every, whole
  pronoun (masculine)
• ga – going, moving, residing in
  adjective (masculine)
  Derived from root gam (to go).
  Root: gam (class 1)

Note: Agrees with `aham`.

व्यापी (vyāpī) - pervasive, extensive, all-encompassing

(adjective)

Nominative, masculine, singular of vyāpin

vyāpin - pervading, extensive, all-encompassing

Prefixes: vi+ā

Root: āp (class 5)

Note: Agrees with `aham`.

नित्यानन्दमयात्मकः (nityānandamayātmakaḥ) - whose nature is eternal bliss

(adjective)

Nominative, masculine, singular of nityānandamayātmaka

nityānandamayātmaka - whose nature is eternal bliss, consisting of eternal joy

Compound type : bahuvrīhi (nitya+ānanda+maya+ātman)

• nitya – eternal, perpetual, constant
  adjective (masculine)
• ānanda – bliss, joy, happiness
  noun (masculine)
  Prefix: ā
  Root: nand (class 1)
• maya – consisting of, made of, full of
  suffix (masculine)
  Suffix indicating 'consisting of'.
• ātman – self, soul, essential nature, spirit
  noun (masculine)

Note: Agrees with `aham`.

विकल्पकलनातीतः (vikalpakalanātītaḥ) - beyond mental constructions and differentiations

(adjective)

Nominative, masculine, singular of vikalpakalanātīta

vikalpakalanātīta - beyond mental constructions, transcending conceptual differentiations

Compound type : tatpuruṣa (vikalpakalanā+atīta)

• vikalpakalanā – mental constructions, differentiations, conceptualizations
  noun (feminine)
• atīta – passed, gone beyond, transcended
  adjective (masculine)
  Past Passive Participle
  Derived from root i with prefix ati.
  Prefix: ati
  Root: i (class 2)

Note: Agrees with `aham`.

द्वितीयांशविवर्जितः (dvitīyāṁśavivarjitaḥ) - devoid of any second part, without a second

(adjective)

Nominative, masculine, singular of dvitīyāṃśavivarjita

dvitīyāṁśavivarjita - devoid of any second part, without a second, non-dual

Compound type : tatpuruṣa (dvitīyāṃśa+vivarjita)

• dvitīyāṃśa – second part, another part
  noun (masculine)
• vivarjita – devoid of, free from, abandoned
  adjective (masculine)
  Past Passive Participle
  Derived from root vṛj with prefix vi.
  Prefix: vi
  Root: vṛj (class 1)

Note: Agrees with `aham`.