योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-9, verse-30

कोशो नित्यमनन्तानां तथा तत्संविदां त्विषाम् ।
सबाह्याभ्यन्तरे सर्वं वस्तुन्यस्त्येव वस्तुसत् ॥ ३० ॥

kośo nityamanantānāṃ tathā tatsaṃvidāṃ tviṣām ,
sabāhyābhyantare sarvaṃ vastunyastyeva vastusat 30

30. kośaḥ nityam anantānām tathā tat-saṃvidām tviṣām
sa-bāhya-ābhyantare sarvam vastuni asti eva vastu-sat

30. vastuni nityam anantānām tathā tat-saṃvidām tviṣām kośaḥ (asti).
sa-bāhya-ābhyantare sarvam vastu-sat eva asti.

30. The ultimate reality (vastu) is eternally a treasury of infinite consciousnesses (saṃvid) and their splendors. Everything, both externally and internally, indeed exists within that reality as truly real substance.

Words meanings summery:

• कोशः (kośaḥ) - treasury, sheath, layer

• नित्यम् (nityam) - eternally, constantly, always

• अनन्तानाम् (anantānām) - of the infinite, of the endless

• तथा (tathā) - similarly, thus, and

• तत्-संविदाम् (tat-saṁvidām) - of those consciousnesses, of that knowledge

• त्विषाम् (tviṣām) - of splendors, of lights, of rays

• स-बाह्य-आभ्यन्तरे (sa-bāhya-ābhyantare) - both externally and internally, within and without

• सर्वम् (sarvam) - all, everything

• वस्तुनि (vastuni) - in the reality, in the substance, in the thing

• अस्ति (asti) - exists, is

• एव (eva) - indeed, only, certainly

• वस्तु-सत् (vastu-sat) - truly existent, real substance, real being

Words meanings and morphology

कोशः (kośaḥ) - treasury, sheath, layer

(noun)

Nominative, masculine, singular of kośa

kośa - treasury, sheath, box, dictionary

नित्यम् (nityam) - eternally, constantly, always

(indeclinable)

Note: Used adverbially

अनन्तानाम् (anantānām) - of the infinite, of the endless

(adjective)

Genitive, plural of ananta

ananta - infinite, endless, limitless

Compound type : bahuvrihi (a+anta)

• a – not, non-
  indeclinable
• anta – end, limit, boundary
  noun (masculine)

तथा (tathā) - similarly, thus, and

(indeclinable)

तत्-संविदाम् (tat-saṁvidām) - of those consciousnesses, of that knowledge

(noun)

Genitive, feminine, plural of tat-saṃvid

tat-saṁvid - that consciousness, that knowledge

Compound type : tatpurusha (tad+saṃvid)

• tad – that, it
  pronoun (neuter)
• saṃvid – consciousness, knowledge, understanding
  noun (feminine)

त्विषाम् (tviṣām) - of splendors, of lights, of rays

(noun)

Genitive, feminine, plural of tviṣ

tviṣ - splendor, light, ray

स-बाह्य-आभ्यन्तरे (sa-bāhya-ābhyantare) - both externally and internally, within and without

(adjective)

Locative, neuter, singular of sa-bāhya-ābhyantara

sa-bāhya-ābhyantara - with external and internal, both external and internal

Compound type : dvandva (sa+bāhya+ābhyantara)

• sa – with, together
  indeclinable
• bāhya – external, outer
  adjective
• ābhyantara – internal, inner
  adjective

Note: Qualifies 'vastuni' or implicitly 'sarvam'

सर्वम् (sarvam) - all, everything

(pronoun)

Nominative, neuter, singular of sarva

sarva - all, every, whole

वस्तुनि (vastuni) - in the reality, in the substance, in the thing

(noun)

Locative, neuter, singular of vastu

vastu - reality, substance, thing, object

अस्ति (asti) - exists, is

(verb)

3rd person , singular, active, present indicative (laṭ) of as

present indicative

Root: as (class 2)

एव (eva) - indeed, only, certainly

(indeclinable)

वस्तु-सत् (vastu-sat) - truly existent, real substance, real being

(noun)

Nominative, neuter, singular of vastu-sat

vastu-sat - real existence, true being

Compound type : tatpurusha (vastu+sat)

• vastu – reality, substance, thing
  noun (neuter)
• sat – existent, real, good
  adjective (neuter)
  Present Active Participle
  From verb 'as' (to be)
  Root: as (class 2)

Note: Appositive to 'sarvam'