योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-68, verse-13

प्रस्फुरच्चित्तकलनमेतन्मौनत्रयं स्मृतम् ।
भवन्ति मौनिनस्तत्र न तज्ज्ञास्तत्स्थलीलया ॥ १३ ॥

prasphuraccittakalanametanmaunatrayaṃ smṛtam ,
bhavanti mauninastatra na tajjñāstatsthalīlayā 13

13. prasphurac-citta-kalanam etat maunatrayam smṛtam
bhavanti mauninaḥ tatra na tajjñāḥ tatsthalī-layā

13. etat prasphurac-citta-kalanam maunatrayam smṛtam
tatra mauninaḥ bhavanti na tajjñāḥ tatsthalī-layā

13. This restraint of the manifesting mental activity (cittakalanam) is known as the three-fold silence (maunatrayam). In that state, true observers of silence (mauninaḥ) come into being, not merely those who intellectually understand it by casually residing in that state.

Words meanings summery:

• प्रस्फुरच्-चित्त-कलनम् (prasphurac-citta-kalanam) - the act of holding in check the active, throbbing mind (restraint/holding of the manifesting mind)

• एतत् (etat) - this (referring to the immediately defined concept) (this)

• मौनत्रयम् (maunatrayam) - the specific concept of three types of silence (verbal, mental, physical, or specific inner states) (three-fold silence)

• स्मृतम् (smṛtam) - is known/considered (as) (remembered, called, known as, considered)

• भवन्ति (bhavanti) - they come into being, they manifest (they are, they become, they exist)

• मौनिनः (mauninaḥ) - true practitioners of silence, sages of silence (silent ones, observers of silence, ascetics)

• तत्र (tatra) - in that state (of silence) (there, in that place, in that case)

• न (na) - not (not, no)

• तज्ज्ञाः (tajjñāḥ) - those who merely have intellectual knowledge of it (those who know that, experts in it)

• तत्स्थली-लया (tatsthalī-layā) - by merely dwelling playfully or casually in that state (by the play/sport of that state/place)

Words meanings and morphology

प्रस्फुरच्-चित्त-कलनम् (prasphurac-citta-kalanam) - the act of holding in check the active, throbbing mind (restraint/holding of the manifesting mind)

(noun)

Nominative, neuter, singular of prasphurac-citta-kalana

prasphurac-citta-kalana - restraint/holding of the manifesting mind

Compound type : tatpuruṣa (prasphurac-citta+kalana)

• pra-sphurat – manifesting, throbbing, shining forth
  participle (neuter)
  Present Active Participle
  from root sphur with prefix pra
  Prefix: pra
  Root: sphur (class 6)
• citta – mind, consciousness
  noun (neuter)
• kalana – holding, grasping, restraint, activity, manifestation
  noun (neuter)
  from root kal
  Root: kal (class 10)

Note: Predicate nominative for `etat maunatrayam`.

एतत् (etat) - this (referring to the immediately defined concept) (this)

(pronoun)

Nominative, neuter, singular of etad

etad - this, that

demonstrative pronoun

Note: Subject of the first clause.

मौनत्रयम् (maunatrayam) - the specific concept of three types of silence (verbal, mental, physical, or specific inner states) (three-fold silence)

(noun)

Nominative, neuter, singular of maunatraya

maunatraya - three-fold silence

Compound type : tatpuruṣa (mauna+traya)

• mauna – silence, taciturnity, vow of silence
  noun (neuter)
  derived from muni (sage)
• traya – group of three, triad
  noun (neuter)
  derived from tri (three)

Note: In apposition with `etat`.

स्मृतम् (smṛtam) - is known/considered (as) (remembered, called, known as, considered)

(participle)

Nominative, neuter, singular of smṛta

smṛta - remembered, recollected, known, declared

Past Passive Participle

from root smṛ

Root: smṛ (class 1)

Note: Predicate adjective/participle modifying `etat maunatrayam`. Implies "it is known (as this)".

भवन्ति (bhavanti) - they come into being, they manifest (they are, they become, they exist)

(verb)

3rd person , plural, active, present (laṭ) of bhū

class 1 verb

Root: bhū (class 1)

Note: Main verb of the second clause.

मौनिनः (mauninaḥ) - true practitioners of silence, sages of silence (silent ones, observers of silence, ascetics)

(noun)

Nominative, masculine, plural of maunin

maunin - silent, observing a vow of silence, an ascetic

derived from mauna (silence)

Note: Subject of `bhavanti`.

तत्र (tatra) - in that state (of silence) (there, in that place, in that case)

(indeclinable)

locative adverb from tad

Note: Refers to the state of `maunatrayam`.

न (na) - not (not, no)

(indeclinable)

negative particle

Note: Negates `tajjñāḥ`.

तज्ज्ञाः (tajjñāḥ) - those who merely have intellectual knowledge of it (those who know that, experts in it)

(noun)

Nominative, masculine, plural of tajjña

tajjña - knowing that, skilled in it, expert

Compound type : tatpuruṣa (tad+jña)

• tad – that, it
  pronoun
  pronominal stem
• jña – knowing, intelligent, wise
  adjective (masculine)
  nominal derivative
  from root jñā
  Root: jñā (class 9)

Note: Contrasted with `mauninaḥ`.

तत्स्थली-लया (tatsthalī-layā) - by merely dwelling playfully or casually in that state (by the play/sport of that state/place)

(noun)

Instrumental, feminine, singular of tatsthalī-laya

tatsthalī-laya - dwelling playfully in that state

Compound type : tatpuruṣa (tad+sthalī+laya)

• tad – that, it
  pronoun
  pronominal stem
• sthalī – place, site, state
  noun (feminine)
• laya – dissolution, absorption, sport, play
  noun (masculine)
  from root lī
  Root: lī (class 4)

Note: Explains the manner in which `tajjñāḥ` "know" but do not "become".