योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-40, verse-19

चित्ताकाशं चिदाकाशमाकाशं च तृतीयकम् ।
विद्ध्येतत्त्रयमेकं त्वमविनाभावनावशात् ॥ १९ ॥

cittākāśaṃ cidākāśamākāśaṃ ca tṛtīyakam ,
viddhyetattrayamekaṃ tvamavinābhāvanāvaśāt 19

19. citta ākāśam cit ākāśam ākāśam ca tṛtīyakam
viddhi etat trayam ekam tvam avinābhāvanāvaśāt

19. tvam cittākāśam cidākāśam ca tṛtīyakam ākāśam
etat trayam avinābhāvanāvaśāt ekam viddhi

19. You should know these three—the space of the mind (cittākāśa), the space of consciousness (cidākāśa), and the third, physical space (ākāśa)—as one, owing to their inseparable nature.

Words meanings summery:

• चित्ताकाशम् (cittākāśam) - mind-space, the space of the mind

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

• आकाशम् (ākāśam) - space, ether, physical space

• च (ca) - and, also

• तृतीयकम् (tṛtīyakam) - the third one

• विद्धि (viddhi) - know, understand

• एतत् (etat) - this

• त्रयम् (trayam) - triad, group of three

• एकम् (ekam) - one, single, united

• त्वम् (tvam) - you

• अविनाभावनावशात् (avinābhāvanāvaśāt) - due to the influence of their inseparability, owing to their inseparable nature

Words meanings and morphology

चित्ताकाशम् (cittākāśam) - mind-space, the space of the mind

(noun)

Nominative, neuter, singular of cittākāśa

cittākāśa - mind-space, the subtle space where mental phenomena occur

Compound 'citta' (mind) + 'ākāśa' (space).

Compound type : Tatpuruṣa (citta+ākāśa)

• citta – mind, thought, consciousness
  noun (neuter)
  Past Passive Participle
  Derived from root 'cit' (to perceive, know) + suffix '-ta'.
  Root: cit (class 1)
• ākāśa – space, ether, sky
  noun (masculine)
  Derived from root 'kāś' (to shine) with prefix 'ā-'.
  Prefix: ā
  Root: kāś (class 1)

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

(noun)

Nominative, neuter, singular of cidākāśa

cidākāśa - consciousness-space, the subtle space of pure awareness

Compound 'cit' (consciousness) + 'ākāśa' (space).

Compound type : Tatpuruṣa (cit+ākāśa)

• cit – consciousness, intelligence, pure awareness
  noun (feminine)
  Derived from root 'cit' (to perceive, know).
  Root: cit (class 1)
• ākāśa – space, ether, sky
  noun (masculine)
  Derived from root 'kāś' (to shine) with prefix 'ā-'.
  Prefix: ā
  Root: kāś (class 1)

आकाशम् (ākāśam) - space, ether, physical space

(noun)

Nominative, neuter, singular of ākāśa

ākāśa - space, ether, sky, atmosphere

Derived from root 'kāś' (to shine) with prefix 'ā-'.

Prefix: ā

Root: kāś (class 1)

Note: Although 'ākāśa' is typically masculine, it can take neuter forms in certain contexts or as part of a list, especially when referring to an abstract concept like 'space' in general.

च (ca) - and, also

(indeclinable)

तृतीयकम् (tṛtīyakam) - the third one

(adjective)

Nominative, neuter, singular of tṛtīyaka

tṛtīyaka - the third, tertiary

Derived from 'tṛtīya' (third) + suffix '-ka'.

विद्धि (viddhi) - know, understand

(verb)

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

Root 'vid' (class 2) in imperative mood (loṭ), second person singular.

Root: vid (class 2)

एतत् (etat) - this

(pronoun)

Nominative, neuter, singular of etad

etad - this, that

त्रयम् (trayam) - triad, group of three

(noun)

Nominative, neuter, singular of traya

traya - triad, group of three, three-fold

Derived from 'tri' (three) + suffix '-ya'.

एकम् (ekam) - one, single, united

(adjective)

Nominative, neuter, singular of eka

eka - one, single, unique, alone

त्वम् (tvam) - you

(pronoun)

Nominative, singular of yuşmad

yuşmad - you (singular)

अविनाभावनावशात् (avinābhāvanāvaśāt) - due to the influence of their inseparability, owing to their inseparable nature

(noun)

Ablative, masculine, singular of avinābhāvanāvaśa

avinābhāvanāvaśa - due to the power/influence of inseparability

Compound 'avinābhāvanā' (inseparability) + 'vaśa' (power, influence).

Compound type : Tatpuruṣa (avinābhāvanā+vaśa)

• avinābhāvanā – inseparability, non-separation
  noun (feminine)
  Compound 'a' (not) + 'vinā' (without) + 'bhāvanā' (concept, being).
• vaśa – will, control, power, influence
  noun (masculine)