योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-54, verse-26

अन्तःकुण्डलिनीं प्राणाः पूरयामासुरादृताः ।
चक्रानुवर्तप्रसृतां पयांसीव सरिद्वराम् ॥ २६ ॥

antaḥkuṇḍalinīṃ prāṇāḥ pūrayāmāsurādṛtāḥ ,
cakrānuvartaprasṛtāṃ payāṃsīva saridvarām 26

26. antaḥkuṇḍalinīm prāṇāḥ pūrayāmāsuḥ ādṛtāḥ
cakrānuvartaprasṛtām payāṃsi iva saridvarām

26. ādṛtāḥ prāṇāḥ cakrānuvartaprasṛtām
antaḥkuṇḍalinīm pūrayāmāsuḥ payāṃsi saridvarām iva

26. The attentive life-breaths (prāṇa) filled the internal kuṇḍalinī (śakti), which spreads following the cakras, just as waters fill an excellent river.

Words meanings summery:

• अन्तःकुण्डलिनीम् (antaḥkuṇḍalinīm) - the internal kuṇḍalinī

• प्राणाः (prāṇāḥ) - life-breaths, vital energies

• पूरयामासुः (pūrayāmāsuḥ) - they filled

• आदृताः (ādṛtāḥ) - attentive, reverent, honored

• चक्रानुवर्तप्रसृताम् (cakrānuvartaprasṛtām) - which spreads following the cakras

• पयांसि (payāṁsi) - waters

• इव (iva) - like, as

• सरिद्वराम् (saridvarām) - an excellent river

Words meanings and morphology

अन्तःकुण्डलिनीम् (antaḥkuṇḍalinīm) - the internal kuṇḍalinī

(noun)

Accusative, feminine, singular of antaḥkuṇḍalinī

antaḥkuṇḍalinī - internal kuṇḍalinī (śakti)

Compound of antas (inside) and kuṇḍalinī (coiled feminine energy)

Compound type : tatpuruṣa (antas+kuṇḍalinī)

• antas – inside, within, internal
  indeclinable
• kuṇḍalinī – kundalini (śakti), coiled power, a serpent power located at the base of the spine in tantric yoga
  noun (feminine)

प्राणाः (prāṇāḥ) - life-breaths, vital energies

(noun)

Nominative, masculine, plural of prāṇa

prāṇa - breath, life-breath, vital air, vital energy

Root: an (class 2)

पूरयामासुः (pūrayāmāsuḥ) - they filled

(verb)

3rd person , plural, active, perfect (lit) of pūrayāmāsuḥ

periphrastic perfect, causative

Periphrastic perfect formed with āsa (root as, to be) and the causative stem pūrayā- from root pṛ (to fill)

Root: pṛ (class 3)

आदृताः (ādṛtāḥ) - attentive, reverent, honored

(adjective)

Nominative, masculine, plural of ādṛta

ādṛta - respected, honored, attentive, reverent, careful

Past Passive Participle

Past passive participle of root dṛ (to regard, respect) with prefix ā

Prefix: ā

Root: dṛ (class 6)

चक्रानुवर्तप्रसृताम् (cakrānuvartaprasṛtām) - which spreads following the cakras

(adjective)

Accusative, feminine, singular of cakrānuvartaprasṛtā

cakrānuvartaprasṛtā - spreading, extending, or flowing in conformity with the cakras (energy centers)

Compound of cakra (wheel), anuvarta (following, conforming to), and prasṛtā (spread out, extended)

Compound type : bahuvrīhi (cakra+anuvarta+prasṛta)

• cakra – wheel, disc, circle, energy center (chakra)
  noun (neuter)
• anuvarta – following, conforming to, in accordance with
  adjective (masculine)
  verbal adjective/agent noun
  From root vṛt (to turn, exist) with prefix anu
  Prefix: anu
  Root: vṛt (class 1)
• prasṛta – spread out, extended, diffused, flowed forth
  adjective (masculine)
  Past Passive Participle
  Past passive participle of root sṛ (to flow, run) with prefix pra
  Prefix: pra
  Root: sṛ (class 1)

पयांसि (payāṁsi) - waters

(noun)

Nominative, neuter, plural of payas

payas - water, milk, fluid

इव (iva) - like, as

(indeclinable)

सरिद्वराम् (saridvarām) - an excellent river

(noun)

Accusative, feminine, singular of saridvarā

saridvarā - best river, excellent river

Compound of sarit (river) and varā (excellent)

Compound type : tatpuruṣa (sarit+varā)

• sarit – river
  noun (feminine)
  Root: sṛ (class 1)
• varā – excellent, best, finest
  adjective (feminine)