योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-121, verse-55

अजाग्रत्स्वप्ननिद्रस्य यत्ते रूपं सनातनम् ।
अचेतनं चाजडं च तन्मयो भव सर्वदा ॥ ५५ ॥

ajāgratsvapnanidrasya yatte rūpaṃ sanātanam ,
acetanaṃ cājaḍaṃ ca tanmayo bhava sarvadā 55

55. ajāgrat-svapna-nidrasya yat te rūpaṃ sanātanam
acetanaṃ ca ajaḍaṃ ca tanmayaḥ bhava sarvadā

55. ajāgrat-svapna-nidrasya yat te sanātanam rūpaṃ,
acetanam ca ajaḍam ca,
tanmayaḥ sarvadā bhava

55. That eternal (sanātana) form (rūpa) of yours (te) which transcends the states of waking, dreaming, and deep sleep, and which is neither (empirically) conscious (acetana) nor inert (ajaḍa)—always become one with that (tanmaya).

Words meanings summery:

• अजाग्रत्-स्वप्न-निद्रस्य (ajāgrat-svapna-nidrasya) - of yours which transcends the states of waking, dreaming, and deep sleep (of that which is beyond waking, dreaming, and deep sleep)

• यत् (yat) - which (which, what)

• ते (te) - of yours (of you, your)

• रूपं (rūpaṁ) - form (rūpa) (form, nature, appearance)

• सनातनम् (sanātanam) - eternal (sanātana) (eternal, everlasting, ancient)

• अचेतनं (acetanaṁ) - neither (empirically) conscious (acetana) (non-conscious, insentient, beyond ordinary consciousness)

• च (ca) - and

• अजडं (ajaḍaṁ) - nor inert (ajaḍa) (non-inert, sentient)

• च (ca) - and

• तन्मयः (tanmayaḥ) - one with that (tanmaya) (composed of that, absorbed in that, one with that)

• भव (bhava) - become (become, be)

• सर्वदा (sarvadā) - always (always, at all times)

Words meanings and morphology

अजाग्रत्-स्वप्न-निद्रस्य (ajāgrat-svapna-nidrasya) - of yours which transcends the states of waking, dreaming, and deep sleep (of that which is beyond waking, dreaming, and deep sleep)

(adjective)

Genitive, masculine, singular of ajāgrat-svapna-nidra

ajāgrat-svapna-nidra - beyond waking, dreaming, and deep sleep states

Compound type : dvandva (ajāgrat+svapna+nidra)

• ajāgrat – not waking, beyond waking
  adjective (masculine)
  Present Active Participle
  compound of a (negation) + jāgrat (present participle of jāgṛ)
  Prefix: a
  Root: jāgṛ (class 2)
• svapna – dream, sleep, dreaming state
  noun (masculine)
  Root: svap (class 2)
• nidra – sleep, deep sleep state
  noun (feminine)

Note: Refers to a consciousness beyond the three states.

यत् (yat) - which (which, what)

(pronoun)

Nominative, neuter, singular of yat

yat - which, what, that (relative pronoun)

ते (te) - of yours (of you, your)

(pronoun)

Genitive, singular of tvad

tvad - you (2nd person pronoun)

रूपं (rūpaṁ) - form (rūpa) (form, nature, appearance)

(noun)

Nominative, neuter, singular of rūpa

rūpa - form, shape, nature, appearance, beauty

सनातनम् (sanātanam) - eternal (sanātana) (eternal, everlasting, ancient)

(adjective)

Nominative, neuter, singular of sanātana

sanātana - eternal, perpetual, ancient, everlasting

अचेतनं (acetanaṁ) - neither (empirically) conscious (acetana) (non-conscious, insentient, beyond ordinary consciousness)

(adjective)

Nominative, neuter, singular of acetana

acetana - non-conscious, insentient, unconscious, beyond empirical consciousness

compound of a (negation) + cetana

च (ca) - and

(indeclinable)

अजडं (ajaḍaṁ) - nor inert (ajaḍa) (non-inert, sentient)

(adjective)

Nominative, neuter, singular of ajaḍa

ajaḍa - non-inert, not dull, sentient, intelligent

compound of a (negation) + jaḍa

च (ca) - and

(indeclinable)

तन्मयः (tanmayaḥ) - one with that (tanmaya) (composed of that, absorbed in that, one with that)

(adjective)

Nominative, masculine, singular of tanmaya

tanmaya - composed of that, absorbed in that, one with that

from tad + mayaṭ (composed of)

भव (bhava) - become (become, be)

(verb)

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

Root: bhū (class 1)

सर्वदा (sarvadā) - always (always, at all times)

(indeclinable)

from sarva (all) + dā (suffix)