योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-57, verse-30

अहंभावस्य नैवाहं नाहंभावो ममेति च ।
तेन विद्धि चिदाकाशमेवेदमिति निर्घनम् ॥ ३० ॥

ahaṃbhāvasya naivāhaṃ nāhaṃbhāvo mameti ca ,
tena viddhi cidākāśamevedamiti nirghanam 30

30. ahaṃbhāvasya na eva aham na ahaṃbhāvaḥ mama iti
ca tena viddhi cidākāśam eva idam iti nirghanam

30. ahaṃbhāvasya aham na eva,
ca ahaṃbhāvaḥ mama na iti.
tena idam nirghanam cidākāśam eva iti viddhi.

30. "I am not the ego (ahaṅkāra), nor is the ego (ahaṅkāra) mine." Therefore, understand that this (reality) is truly the pure, unclouded space of consciousness (cidākāśa).

Words meanings summery:

• अहंभावस्य (ahaṁbhāvasya) - of the ego (ahaṅkāra), of the sense of 'I'

• न (na) - not, no

• एव (eva) - indeed, only, just

• अहम् (aham) - I

• न (na) - not, no

• अहंभावः (ahaṁbhāvaḥ) - the ego (ahaṅkāra), the sense of 'I'

• मम (mama) - mine, my

• इति (iti) - marks the end of a quotation or statement (thus, in this way, so)

• च (ca) - and, also

• तेन (tena) - therefore, for that reason (by that, therefore, by him/it)

• विद्धि (viddhi) - know, understand, perceive (imperative)

• चिदाकाशम् (cidākāśam) - the consciousness-space, the space of pure consciousness

• एव (eva) - indeed, only, just

• इदम् (idam) - referring to the true nature of reality (this, this reality)

• इति (iti) - marks the end of the injunction or conclusion (thus, in this way, so)

• निर्घनम् (nirghanam) - pure, unobstructed, undifferentiated (like clear sky) (free from clouds/obstacles, unclouded, without density)

Words meanings and morphology

अहंभावस्य (ahaṁbhāvasya) - of the ego (ahaṅkāra), of the sense of 'I'

(noun)

Genitive, masculine, singular of ahaṃbhāva

ahaṁbhāva - ego (ahaṅkāra), egohood, sense of 'I'

Compound of 'aham' (I) and 'bhāva' (state of being, sense).

Compound type : tatpuruṣa (aham+bhāva)

• aham – I, ego
  pronoun
• bhāva – state of being, existence, feeling, intention
  noun (masculine)
  action noun
  Derived from root √bhū (to be, exist) with suffix -a.
  Root: √bhū (class 1)

न (na) - not, no

(indeclinable)

एव (eva) - indeed, only, just

(indeclinable)

अहम् (aham) - I

(pronoun)

Nominative, singular of mad

mad - I

न (na) - not, no

(indeclinable)

अहंभावः (ahaṁbhāvaḥ) - the ego (ahaṅkāra), the sense of 'I'

(noun)

Nominative, masculine, singular of ahaṃbhāva

ahaṁbhāva - ego (ahaṅkāra), egohood, sense of 'I'

Compound of 'aham' (I) and 'bhāva' (state of being, sense).

Compound type : tatpuruṣa (aham+bhāva)

• aham – I, ego
  pronoun
• bhāva – state of being, existence, feeling, intention
  noun (masculine)
  action noun
  Derived from root √bhū (to be, exist) with suffix -a.
  Root: √bhū (class 1)

मम (mama) - mine, my

(pronoun)

Genitive, singular of mad

mad - I

इति (iti) - marks the end of a quotation or statement (thus, in this way, so)

(indeclinable)

च (ca) - and, also

(indeclinable)

तेन (tena) - therefore, for that reason (by that, therefore, by him/it)

(pronoun)

Instrumental, neuter, singular of tad

tad - that, he, she, it

Note: Can also be masculine singular instrumental. Used here to mean 'therefore'.

विद्धि (viddhi) - know, understand, perceive (imperative)

(verb)

2nd person , singular, active, imperative (loṭ) of √vid

Imperative mood, Parasmaipada

2nd person singular active imperative form of root '√vid'.

Root: √vid (class 2)

चिदाकाशम् (cidākāśam) - the consciousness-space, the space of pure consciousness

(noun)

Accusative, masculine, singular of cidākāśa

cidākāśa - consciousness-space (cidākāśa), the ether of consciousness, pure consciousness as space

Compound of 'cit' (consciousness) and 'ākāśa' (space).

Compound type : karmadhāraya (cit+ākāśa)

• cit – consciousness, thought, intelligence
  noun (feminine)
• ākāśa – sky, space, ether, vastness
  noun (masculine)
  Derived from prefix 'ā-' and root '√kāś' (to shine, appear).
  Prefix: ā
  Root: √kāś (class 1)

एव (eva) - indeed, only, just

(indeclinable)

इदम् (idam) - referring to the true nature of reality (this, this reality)

(pronoun)

Accusative, neuter, singular of idam

idam - this, this one, here

Note: Can also be nominative singular neuter.

इति (iti) - marks the end of the injunction or conclusion (thus, in this way, so)

(indeclinable)

निर्घनम् (nirghanam) - pure, unobstructed, undifferentiated (like clear sky) (free from clouds/obstacles, unclouded, without density)

(adjective)

Accusative, neuter, singular of nirghana

nirghana - cloudless, without obstruction, pure, clear, without density or mass

Compound of 'nis-' (without) and 'ghana' (cloud, density, mass).

Compound type : bahuvrīhi (nis+ghana)

• nis – out, forth, without, negation
  prefix
• ghana – cloud, dense, thick, mass, solid
  noun (masculine)

Note: Modifies 'cidākāśa' (consciousness-space).