योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-42, verse-23

एतदास्तामिदं तावद्यज्जाग्रदिव मन्यसे ।
विद्धि तत्स्वप्नमेवान्तर्देशकालाद्यपूरकम् ॥ २३ ॥

etadāstāmidaṃ tāvadyajjāgradiva manyase ,
viddhi tatsvapnamevāntardeśakālādyapūrakam 23

23. etat āstām idam tāvat yat jāgrat iva manyase viddhi
tat svapnam eva antaḥ deśa-kāla-ādi-apūrakam

23. idam tāvat etat āstām.
yat jāgrat iva manyase tat antaḥ deśa-kāla-ādi-apūrakam svapnam eva viddhi.

23. Let this topic rest for now. What you currently perceive as the waking state, understand that it is merely a dream internally, one that does not truly establish (or fulfill) space, time, and other such categories.

Words meanings summery:

• एतत् (etat) - this topic (this, that)

• आस्ताम् (āstām) - let it be, let it remain, let it rest

• इदम् (idam) - this, this matter

• तावत् (tāvat) - for now, so much, to that extent

• यत् (yat) - which, that which, whatever

• जाग्रत् (jāgrat) - the current waking state (waking, awake, the waking state)

• इव (iva) - like, as if, as though

• मन्यसे (manyase) - you think, you consider, you believe

• विद्धि (viddhi) - know, understand, perceive

• तत् (tat) - that, that object

• स्वप्नम् (svapnam) - a dream, the dream state, sleep

• एव (eva) - merely, only, indeed

• अन्तः (antaḥ) - inside, internally, within

• देश-काल-आदि-अपूरकम् (deśa-kāla-ādi-apūrakam) - not truly establishing space, time, and other categories (as a dream lacks substance) (not establishing space, time, and so forth; not fulfilling space, time, etc.)

Words meanings and morphology

एतत् (etat) - this topic (this, that)

(pronoun)

Nominative, neuter, singular of etad

etad - this, that

आस्ताम् (āstām) - let it be, let it remain, let it rest

(verb)

3rd person , singular, active, imperative (lot) of ās

Imperative

3rd person singular, parasmaipada of root ās with prefix ā

Prefix: ā

Root: ās (class 2)

इदम् (idam) - this, this matter

(pronoun)

Nominative, neuter, singular of idam

idam - this

तावत् (tāvat) - for now, so much, to that extent

(indeclinable)

यत् (yat) - which, that which, whatever

(pronoun)

Nominative, neuter, singular of yad

yad - which, what

जाग्रत् (jāgrat) - the current waking state (waking, awake, the waking state)

(adjective)

Nominative, neuter, singular of jāgrat

jāgrat - waking, awake

present active participle

present active participle of root jgṛ (to wake)

Root: jgṛ (class 3)

इव (iva) - like, as if, as though

(indeclinable)

मन्यसे (manyase) - you think, you consider, you believe

(verb)

2nd person , singular, middle, present (lat) of man

present

2nd person singular, middle voice of root man

Root: man (class 4)

विद्धि (viddhi) - know, understand, perceive

(verb)

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

imperative

2nd person singular, active voice of root vid

Root: vid (class 2)

तत् (tat) - that, that object

(pronoun)

Accusative, neuter, singular of tad

tad - that

स्वप्नम् (svapnam) - a dream, the dream state, sleep

(noun)

Accusative, masculine, singular of svapna

svapna - sleep, dream, dream state

एव (eva) - merely, only, indeed

(indeclinable)

अन्तः (antaḥ) - inside, internally, within

(indeclinable)

देश-काल-आदि-अपूरकम् (deśa-kāla-ādi-apūrakam) - not truly establishing space, time, and other categories (as a dream lacks substance) (not establishing space, time, and so forth; not fulfilling space, time, etc.)

(adjective)

Accusative, neuter, singular of deśa-kāla-ādi-apūraka

deśa-kāla-ādi-apūraka - not fulfilling/establishing space, time, etc.

Compound formed with negative prefix 'a' and pūraka (from root pūrv 'to fill')

Compound type : tatpuruṣa (deśa+kāla+ādi+apūraka)

• deśa – space, region
  noun (masculine)
• kāla – time
  noun (masculine)
• ādi – beginning, and so on
  noun (masculine)
• apūraka – not filling, not completing, not fulfilling, not establishing
  adjective
  Derivative of pūraka (from pūrv 'to fill') with negative prefix 'a'
  Root: pūrv