योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-68, verse-24

अत्यन्तमसतैवान्तश्चेतसाऽवृत्तिरूघिणा ।
यदनावर्तनं संविद्वृत्तेस्तन्मौनमक्षयम् ॥ २४ ॥

atyantamasataivāntaścetasā'vṛttirūghiṇā ,
yadanāvartanaṃ saṃvidvṛttestanmaunamakṣayam 24

24. atyantam asatā eva antaḥ cetasā avṛttirūḍhiṇā
yat anāvartanam saṃvid vṛtteḥ tat maunam akṣayam

24. yat saṃvidvṛtteḥ anāvartanam,
antaḥ cetasā atyantam asatā eva avṛttirūḍhiṇā tat akṣayam maunam (ucyate)

24. That imperishable silence (mauna) is when the modification of consciousness (saṃvid-vṛtti) does not return, because internally the mind, utterly settled in non-activity by the non-existent, is rooted in the cessation of its modifications.

Words meanings summery:

• अत्यन्तम् (atyantam) - exceedingly, utterly, completely, very much

• असता (asatā) - by the non-existent, by the unreal, by the untrue

• एव (eva) - only, just, indeed, certainly

• अन्तः (antaḥ) - within, inside, internal, internally

• चेतसा (cetasā) - by the mind, by consciousness, by thought

• अवृत्तिरूढिणा (avṛttirūḍhiṇā) - by that which is rooted in cessation of modifications/activities, established in non-activity

• यत् (yat) - that which, inasmuch as, if

• अनावर्तनम् (anāvartanam) - non-return, non-repetition, cessation of recurrence

• संविद् (saṁvid) - flow of consciousness (when combined with vṛtti) (consciousness, knowledge, understanding)

• वृत्तेः (vṛtteḥ) - of the modification, of the activity, of the flow

• तत् (tat) - that

• मौनम् (maunam) - silence, state of a silent sage (mauna)

• अक्षयम् (akṣayam) - imperishable, undecaying, eternal

Words meanings and morphology

अत्यन्तम् (atyantam) - exceedingly, utterly, completely, very much

(indeclinable)

असता (asatā) - by the non-existent, by the unreal, by the untrue

(adjective)

Instrumental, singular of asat

asat - non-existent, unreal, untrue, non-being

एव (eva) - only, just, indeed, certainly

(indeclinable)

अन्तः (antaḥ) - within, inside, internal, internally

(indeclinable)

चेतसा (cetasā) - by the mind, by consciousness, by thought

(noun)

Instrumental, neuter, singular of cetas

cetas - mind, consciousness, intellect, thought

अवृत्तिरूढिणा (avṛttirūḍhiṇā) - by that which is rooted in cessation of modifications/activities, established in non-activity

(adjective)

Instrumental, neuter, singular of avṛttirūḍhi

avṛttirūḍhi - rooted in non-activity, established in cessation of modifications

Compound type : Bahuvrīhi (avṛtti+rūḍhi)

• avṛtti – non-activity, cessation of modification, absence of mental states
  noun (feminine)
• rūḍhi – rooted, established, firm, conventional, traditional
  noun (feminine)

Note: Agrees with `cetasā` (neuter instrumental singular)

यत् (yat) - that which, inasmuch as, if

(pronoun)

Nominative, neuter, singular of yad

yad - that which, inasmuch as, if

अनावर्तनम् (anāvartanam) - non-return, non-repetition, cessation of recurrence

(noun)

Nominative, neuter, singular of anāvartana

anāvartana - non-return, cessation of recurrence

Action noun

Formed with prefix an- (negation) and suffix -ana to the root vṛt with prefix ā-.

Compound type : Nañ-Tatpuruṣa (an+āvartana)

• an – not, non-
  indeclinable
• āvartana – return, revolution, repetition, turning
  noun (neuter)
  Action noun
  Derived from root vṛt with prefix ā-
  Prefix: ā
  Root: vṛt (class 1)

संविद् (saṁvid) - flow of consciousness (when combined with vṛtti) (consciousness, knowledge, understanding)

(noun)

feminine, singular of saṃvid

saṁvid - consciousness, knowledge, understanding, agreement

Prefix: sam

Root: vid (class 2)

Note: Part of a compound `saṃvid-vṛttiḥ`

वृत्तेः (vṛtteḥ) - of the modification, of the activity, of the flow

(noun)

Genitive, feminine, singular of vṛtti

vṛtti - modification, activity, function, mental state, livelihood

Action noun

Derived from root vṛt

Root: vṛt (class 1)

तत् (tat) - that

(pronoun)

Nominative, neuter, singular of tad

tad - that, that one

मौनम् (maunam) - silence, state of a silent sage (mauna)

(noun)

Nominative, neuter, singular of mauna

mauna - silence, taciturnity, state of a silent sage (mauna)

Derived from 'muni' (sage)

अक्षयम् (akṣayam) - imperishable, undecaying, eternal

(adjective)

Nominative, neuter, singular of akṣaya

akṣaya - imperishable, undecaying, eternal

Compound type : Nañ-Tatpuruṣa (a+kṣaya)

• a – not, non-
  indeclinable
• kṣaya – decay, destruction, perishing, loss
  noun (masculine)
  Action noun
  Derived from root kṣi
  Root: kṣi (class 1)