योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-49, verse-30

आवर्तः सलिलस्येव यः स्पन्दस्त्वयमात्मनः ।
प्रोक्तः प्रकृतिशब्देन तेनैवेह स एव हि ॥ ३० ॥

āvartaḥ salilasyeva yaḥ spandastvayamātmanaḥ ,
proktaḥ prakṛtiśabdena tenaiveha sa eva hi 30

30. āvartaḥ salilasya iva yaḥ spandaḥ tu ayam ātmanaḥ
proktaḥ prakṛtiśabdena tena eva iha saḥ eva hi

30. yaḥ ayam ātmanaḥ spandaḥ salilasya āvartaḥ iva (asti),
saḥ iha prakṛtiśabdena proktaḥ.
tena eva saḥ eva hi (asti).

30. Just as a whirlpool is a movement of water, so too, this pulsation (spanda) of the self (ātman) is declared here by the word nature (prakṛti). Indeed, it is precisely that very (self/pulsation) that exists here.

Words meanings summery:

• आवर्तः (āvartaḥ) - whirlpool, eddy, rolling, turning

• सलिलस्य (salilasya) - of water, of fluid

• इव (iva) - like, as, as if

• यः (yaḥ) - which, who, what

• स्पन्दः (spandaḥ) - pulsation, vibration, throbbing, movement

• तु (tu) - but, on the other hand, indeed, however

• अयम् (ayam) - this (masculine nominative singular)

• आत्मनः (ātmanaḥ) - of the self (ātman), of the soul, of oneself

• प्रोक्तः (proktaḥ) - declared, said, spoken, proclaimed

• प्रकृतिशब्देन (prakṛtiśabdena) - by the word 'prakṛti', by the term 'nature'

• तेन (tena) - by that, by it

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

• इह (iha) - here, in this world/context

• सः (saḥ) - that, he, it

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

• हि (hi) - surely, indeed, because

Words meanings and morphology

आवर्तः (āvartaḥ) - whirlpool, eddy, rolling, turning

(noun)

Nominative, masculine, singular of āvarta

āvarta - whirlpool, rolling, turning

Prefix: ā

Root: vṛt (class 1)

सलिलस्य (salilasya) - of water, of fluid

(noun)

Genitive, neuter, singular of salila

salila - water, fluid

इव (iva) - like, as, as if

(indeclinable)

यः (yaḥ) - which, who, what

(pronoun)

Nominative, masculine, singular of yad

yad - which, what, who

स्पन्दः (spandaḥ) - pulsation, vibration, throbbing, movement

(noun)

Nominative, masculine, singular of spanda

spanda - pulsation, vibration, throbbing, movement

Root: spand (class 1)

तु (tu) - but, on the other hand, indeed, however

(indeclinable)

अयम् (ayam) - this (masculine nominative singular)

(pronoun)

Nominative, masculine, singular of idam

idam - this

आत्मनः (ātmanaḥ) - of the self (ātman), of the soul, of oneself

(noun)

Genitive, masculine, singular of ātman

ātman - self, soul, spirit, essence (ātman)

प्रोक्तः (proktaḥ) - declared, said, spoken, proclaimed

(adjective)

Nominative, masculine, singular of prokta

prokta - declared, said, spoken, proclaimed

Past Passive Participle

derived from pra-√vac (to speak)

Prefix: pra

Root: vac (class 2)

प्रकृतिशब्देन (prakṛtiśabdena) - by the word 'prakṛti', by the term 'nature'

(noun)

Instrumental, masculine, singular of prakṛtiśabda

prakṛtiśabda - the word 'prakṛti', the term 'nature'

Compound type : tatpuruṣa (prakṛti+śabda)

• prakṛti – nature, origin, primal matter, disposition (prakṛti)
  noun (feminine)
  Prefix: pra
  Root: kṛ (class 8)
• śabda – word, sound, term
  noun (masculine)

तेन (tena) - by that, by it

(pronoun)

Instrumental, masculine, singular of tad

tad - that, it

एव (eva) - indeed, only, just, alone

(indeclinable)

इह (iha) - here, in this world/context

(indeclinable)

सः (saḥ) - that, he, it

(pronoun)

Nominative, masculine, singular of tad

tad - that, it

एव (eva) - indeed, only, just, alone

(indeclinable)

हि (hi) - surely, indeed, because

(indeclinable)