योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-30, verse-100

चिच्चिनोति यथात्मानं येन यत्र यदा यदा ।
तत्तथानुभवत्यम्बु स्पन्दाद्वीच्यादितां यथा ॥ १०० ॥

ciccinoti yathātmānaṃ yena yatra yadā yadā ,
tattathānubhavatyambu spandādvīcyāditāṃ yathā 100

100. cit cinoti yathā ātmanam yena yatra yadā yadā tat
tathā anubhavati ambu spandāt vīcyāditām yathā

100. yathā ambu spandāt vīcyāditām anubhavati tathā cit
yena yatra yadā yadā ātmanam cinoti tat anubhavati

100. Just as water, through its own pulsation (spanda), takes on the state of being waves and so forth, so also consciousness (cit) perceives its own self (ātman) in whatever way, by whatever means, and whenever it manifests.

Words meanings summery:

• चित् (cit) - pure consciousness or ultimate awareness (consciousness, pure awareness, thought)

• चिनोति (cinoti) - perceives or experiences (he/she/it gathers, collects, observes, perceives, experiences)

• यथा (yathā) - as, just as, in whatever way

• आत्मनम् (ātmanam) - its own self (the self, oneself)

• येन (yena) - by which, by whom, in which way

• यत्र (yatra) - where, in which place

• यदा (yadā) - when, whenever

• यदा (yadā) - when, whenever

• तत् (tat) - so, accordingly (that, therefore, so)

• तथा (tathā) - so, in that manner, thus

• अनुभवति (anubhavati) - experiences (he/she/it experiences, perceives, feels)

• अम्बु (ambu) - water

• स्पन्दात् (spandāt) - from pulsation, from vibration, from throbbing

• वीच्यादिताम् (vīcyāditām) - the state of being a wave and so on, wave-like state

• यथा (yathā) - just as, as

Words meanings and morphology

चित् (cit) - pure consciousness or ultimate awareness (consciousness, pure awareness, thought)

(noun)

Nominative, feminine, singular of cit

cit - consciousness, pure intelligence, mind, thought (cit)

From root cit- (to perceive, observe, understand).

Root: cit (class 1)

चिनोति (cinoti) - perceives or experiences (he/she/it gathers, collects, observes, perceives, experiences)

(verb)

3rd person , singular, active, present (laṭ) of ci

Present Active Indicative, Parasmaipada

Root ci, class 5.

Root: ci (class 5)

यथा (yathā) - as, just as, in whatever way

(indeclinable)

आत्मनम् (ātmanam) - its own self (the self, oneself)

(noun)

Accusative, masculine, singular of ātman

ātman - self, soul, spirit, individual soul, the Supreme Soul (ātman)

येन (yena) - by which, by whom, in which way

(pronoun)

Instrumental, masculine, singular of ya

ya - who, which, what (relative pronoun)

यत्र (yatra) - where, in which place

(indeclinable)

Formed from ya- (relative pronoun) and the locative suffix -tra.

यदा (yadā) - when, whenever

(indeclinable)

Formed from ya- (relative pronoun) and the temporal suffix -dā.

यदा (yadā) - when, whenever

(indeclinable)

Formed from ya- (relative pronoun) and the temporal suffix -dā.

Note: Repetition emphasizes 'at whatever time'.

तत् (tat) - so, accordingly (that, therefore, so)

(pronoun)

Nominative, neuter, singular of tad

tad - that, it, he, she

Note: Used correlatively with yathā.

तथा (tathā) - so, in that manner, thus

(indeclinable)

Note: Used correlatively with yathā.

अनुभवति (anubhavati) - experiences (he/she/it experiences, perceives, feels)

(verb)

3rd person , singular, active, present (laṭ) of anubhū

Present Active Indicative, Parasmaipada

Root bhū, class 1, with upasarga anu-.

Prefix: anu

Root: bhū (class 1)

अम्बु (ambu) - water

(noun)

Nominative, neuter, singular of ambu

ambu - water

स्पन्दात् (spandāt) - from pulsation, from vibration, from throbbing

(noun)

Ablative, masculine, singular of spanda

spanda - vibration, pulsation, throbbing, movement (spanda)

From root spand- (to tremble, vibrate).

Root: spand (class 1)

वीच्यादिताम् (vīcyāditām) - the state of being a wave and so on, wave-like state

(noun)

Accusative, feminine, singular of vīcyāditā

vīcyāditā - the state of being a wave, etc.

Compound of vīcī, ādi, and tā.

Compound type : tatpuruṣa (vīcī+ādi+tā)

• vīcī – wave, billow
  noun (feminine)
• ādi – beginning, and so on, et cetera
  indeclinable
• tā – suffix forming abstract nouns, 'state of being, nature of'
  suffix (feminine)

यथा (yathā) - just as, as

(indeclinable)

Note: Introduces the simile.