योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-10, verse-10

सौम्याम्भसि यथा वीचिर्न चास्ति नच नास्ति च ।
तथा जगद्ब्रह्मणीदं शून्याशून्यपदं गतम् ॥ १० ॥

saumyāmbhasi yathā vīcirna cāsti naca nāsti ca ,
tathā jagadbrahmaṇīdaṃ śūnyāśūnyapadaṃ gatam 10

10. saumya-ambhasi yathā vīciḥ na ca asti na ca na asti ca
| tathā jagat brahmaṇi idam śūnya-aśūnya-padam gatam ||

10. yathā saumya-ambhasi vīciḥ na ca asti na ca na asti ca,
tathā idam jagat brahmaṇi śūnya-aśūnya-padam gatam.

10. Just as a wave in calm water neither truly exists nor truly does not exist (as separate from the water), similarly, this universe in (brahman) has attained a state that is neither empty nor not empty (i.e., indescribable).

Words meanings summery:

• सौम्य-अम्भसि (saumya-ambhasi) - in calm water (in calm water, in gentle water)

• यथा (yathā) - just as (as, just as, in which manner)

• वीचिः (vīciḥ) - a wave (wave, ripple)

• न (na) - neither (not, no, nor)

• च (ca) - and (used with 'na' for "neither...nor") (and, also, moreover)

• अस्ति (asti) - exists (is, exists)

• न (na) - nor (not, no, nor)

• च (ca) - and (used with 'na' for "neither...nor") (and, also, moreover)

• न (na) - not (not, no, nor)

• अस्ति (asti) - exists (is, exists)

• च (ca) - and (and, also, moreover)

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

• जगत् (jagat) - the universe (moving, world, universe)

• ब्रह्मणि (brahmaṇi) - in Brahman

• इदम् (idam) - this (universe) (this, this one)

• शून्य-अशून्य-पदम् (śūnya-aśūnya-padam) - the state of being neither empty nor not empty, an indescribable state (the state of being empty and not empty (indescribable))

• गतम् (gatam) - has reached (gone, reached, attained)

Words meanings and morphology

सौम्य-अम्भसि (saumya-ambhasi) - in calm water (in calm water, in gentle water)

(noun)

Locative, neuter, singular of saumya-ambhas

saumya-ambhas - calm water, gentle water

Compound type : tatpuruṣa (saumya+ambhas)

• saumya – calm, gentle, mild, benevolent
  adjective (neuter)
• ambhas – water
  noun (neuter)

Note: Refers to the medium in which the wave exists.

यथा (yathā) - just as (as, just as, in which manner)

(indeclinable)

वीचिः (vīciḥ) - a wave (wave, ripple)

(noun)

Nominative, feminine, singular of vīci

vīci - wave, ripple, current

Note: The subject of the first clause.

न (na) - neither (not, no, nor)

(indeclinable)

च (ca) - and (used with 'na' for "neither...nor") (and, also, moreover)

(indeclinable)

Note: Conjunction.

अस्ति (asti) - exists (is, exists)

(verb)

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

Present Active Indicative, 3rd person singular

Root: as (class 2)

न (na) - nor (not, no, nor)

(indeclinable)

च (ca) - and (used with 'na' for "neither...nor") (and, also, moreover)

(indeclinable)

Note: Conjunction.

न (na) - not (not, no, nor)

(indeclinable)

अस्ति (asti) - exists (is, exists)

(verb)

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

Present Active Indicative, 3rd person singular

Root: as (class 2)

च (ca) - and (and, also, moreover)

(indeclinable)

Note: Conjunction. The structure "na ca asti na ca na asti ca" is "neither exists nor not exists".

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

(indeclinable)

जगत् (jagat) - the universe (moving, world, universe)

(noun)

Nominative, neuter, singular of jagat

jagat - moving, world, universe

Present Active Participle

Derived from root 'gam'

Root: gam (class 1)

Note: The subject of the second clause.

ब्रह्मणि (brahmaṇi) - in Brahman

(noun)

Locative, neuter, singular of brahman

brahman - Brahman, the Absolute Reality, the ultimate truth

Note: The locus for the universe.

इदम् (idam) - this (universe) (this, this one)

(pronoun)

Nominative, neuter, singular of idam

idam - this, this one

Note: Adjectival to jagat.

शून्य-अशून्य-पदम् (śūnya-aśūnya-padam) - the state of being neither empty nor not empty, an indescribable state (the state of being empty and not empty (indescribable))

(noun)

Accusative, neuter, singular of śūnya-aśūnya-pada

śūnya-aśūnya-pada - the state of being empty and not empty, indescribable state

Compound type : dvandva / tatpuruṣa (śūnya+aśūnya+pada)

• śūnya – empty, void
  adjective (neuter)
• aśūnya – not empty, full
  adjective (neuter)
• pada – state, place
  noun (neuter)

Note: Object of gatam.

गतम् (gatam) - has reached (gone, reached, attained)

(adjective)

Nominative, neuter, singular of gata

gata - gone, reached, attained

Past Passive Participle

Derived from root 'gam'

Root: gam (class 1)

Note: Functions as the main verb here (has gone/reached). Agrees with jagat.