योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-37, verse-71

शान्ते महाचिदाकाशे जगच्छून्यत्वशालिनि ।
चेत्यासंभवतः सन्ति नोदयास्तमयौ कुतः ॥ ७१ ॥

śānte mahācidākāśe jagacchūnyatvaśālini ,
cetyāsaṃbhavataḥ santi nodayāstamayau kutaḥ 71

71. śānte mahācidākāśe jagacchūnyatvaśālini
cetyāsaṃbhavataḥ santi na udayāstamayau kutaḥ

71. śānte mahācidākāśe jagacchūnyatvaśālini
cetyāsaṃbhavataḥ na udayāstamayau santi kutaḥ

71. In the serene, vast expanse of consciousness (mahā-cit-ākāśa), which is characterized by the world's voidness, how can there be any rising or setting when no objects of consciousness (cetya) truly exist?

Words meanings summery:

• शान्ते (śānte) - in the tranquil, in the peaceful

• महाचिदाकाशे (mahācidākāśe) - in the great consciousness-space, in the vast expanse of consciousness

• जगच्छून्यत्वशालिनि (jagacchūnyatvaśālini) - in that which possesses the voidness of the world, characterized by the world's emptiness

• चेत्यासंभवतः (cetyāsaṁbhavataḥ) - due to the non-existence of objects of consciousness

• सन्ति (santi) - they are, exist

• न (na) - not, no

• उदयास्तमयौ (udayāstamayau) - rising and setting

• कुतः (kutaḥ) - whence, from where, how, wherefore

Words meanings and morphology

शान्ते (śānte) - in the tranquil, in the peaceful

(adjective)

Locative, masculine, singular of śānta

śānta - tranquil, peaceful, calm, quieted

Past Passive Participle

Derived from root śam (to be calm) with suffix -ta

Root: śam (class 4)

Note: Agrees with mahācidākāśe

महाचिदाकाशे (mahācidākāśe) - in the great consciousness-space, in the vast expanse of consciousness

(noun)

Locative, masculine, singular of mahācidākāśa

mahācidākāśa - great consciousness-space, vast expanse of consciousness

Compound type : Complex Tatpuruṣa (mahat+cit+ākāśa)

• mahat – great, large, mighty
  adjective
• cit – consciousness, intelligence, thought
  noun (feminine)
• ākāśa – space, sky, ether, empty space
  noun (masculine)

जगच्छून्यत्वशालिनि (jagacchūnyatvaśālini) - in that which possesses the voidness of the world, characterized by the world's emptiness

(adjective)

Locative, masculine, singular of jagatśūnyatvaśālin

jagatśūnyatvaśālin - possessing the nature of the world's voidness, characterized by the world's emptiness

Compound type : Bahuvrīhi (jagat+śūnyatva+śālin)

• jagat – world, universe, that which moves
  noun (neuter)
• śūnyatva – voidness, emptiness, nihility
  noun (neuter)
  Derived from `śūnya` (empty) with suffix `tva` (abstract noun suffix)
• śālin – possessing, endowed with, characterized by
  adjective
  Derived from root śal (to move) with suffix -in
  Root: śal (class 1)

Note: Agrees with mahācidākāśe

चेत्यासंभवतः (cetyāsaṁbhavataḥ) - due to the non-existence of objects of consciousness

(noun)

Ablative, masculine, singular of cetyāsaṃbhava

cetyāsaṁbhava - non-existence of objects of consciousness, impossibility of objects of perception

Compound type : Tatpuruṣa (cetya+asaṃbhava)

• cetya – that which is to be perceived, object of consciousness, perceivable
  noun (neuter)
  Gerundive/Passive Participle
  Derived from root cit (to perceive, know) with suffix -ya
  Root: cit (class 1)
• asaṃbhava – non-existence, impossibility, unlikelihood
  noun (masculine)
  Negative prefix 'a-' + `saṃbhava` (existence, possibility)
  Prefix: sam
  Root: bhū (class 1)

Note: Used in the sense of 'for the reason of'

सन्ति (santi) - they are, exist

(verb)

3rd person , plural, active, present (lat) of as

Root: as (class 2)

न (na) - not, no

(indeclinable)

उदयास्तमयौ (udayāstamayau) - rising and setting

(noun)

Nominative, masculine, dual of udayāstamaya

udayāstamaya - rising and setting, appearance and disappearance

Compound type : Dvandva (udaya+astamaya)

• udaya – rising, appearance, origin
  noun (masculine)
  Derived from root i (to go) with prefix ud
  Prefix: ud
  Root: i (class 2)
• astamaya – setting, disappearance, destruction
  noun (masculine)
  Derived from root i (to go) with prefix asta
  Prefix: asta
  Root: i (class 2)

कुतः (kutaḥ) - whence, from where, how, wherefore

(indeclinable)