योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-11, verse-12

मरुनद्यां यथा तोयं द्वितीयेन्दौ यथेन्दुता ।
नास्त्येवेह जगन्नाम दृष्टमप्यमलात्मनि ॥ १२ ॥

marunadyāṃ yathā toyaṃ dvitīyendau yathendutā ,
nāstyeveha jagannāma dṛṣṭamapyamalātmani 12

12. marunadyām yathā toyam dvitīyendau yathā indutā na
asti eva iha jagat nāma dṛṣṭam api amala-ātmani

12. yathā marunadyām toyam yathā dvitīyendau indutā tathā
iha amala-ātmani dṛṣṭam api jagat nāma eva na asti

12. Just as there is no real water in a desert mirage (marunadī) and no true 'moon-ness' in the illusion of a double moon, similarly, this so-called world (jagat) does not truly exist here in the pure Self (ātman), even though it is perceived.

Words meanings summery:

• मरुनद्याम् (marunadyām) - in a mirage river

• यथा (yathā) - as, just as, like

• तोयम् (toyam) - water

• द्वितीयेन्दौ (dvitīyendau) - in the second moon, in the double moon (illusion)

• यथा (yathā) - as, just as, like

• इन्दुता (indutā) - moon-ness, the quality of being a moon

• न (na) - not, no

• अस्ति (asti) - is, exists

• एव (eva) - indeed, certainly, only

• इह (iha) - here, in this world, in this case

• जगत् (jagat) - world, universe

• नाम (nāma) - by name, indeed, so-called

• दृष्टम् (dṛṣṭam) - perceived, seen

• अपि (api) - even, also, though

• अमल-आत्मनि (amala-ātmani) - in the pure Self

Words meanings and morphology

मरुनद्याम् (marunadyām) - in a mirage river

(noun)

Locative, feminine, singular of marunadī

marunadī - mirage-river, desert-river (illusionary)

Compound of maru (desert) and nadī (river)

Compound type : tatpurusha (maru+nadī)

• maru – desert, sandy desert
  noun (masculine)
• nadī – river, stream
  noun (feminine)

यथा (yathā) - as, just as, like

(indeclinable)

तोयम् (toyam) - water

(noun)

neuter, singular of toya

toya - water

द्वितीयेन्दौ (dvitīyendau) - in the second moon, in the double moon (illusion)

(noun)

Locative, masculine, singular of dvitīyendu

dvitīyendu - a second moon, an illusory double moon

Compound of dvitīya (second) and indu (moon)

Compound type : karmadharaya (dvitīya+indu)

• dvitīya – second
  adjective (masculine)
• indu – moon
  noun (masculine)

यथा (yathā) - as, just as, like

(indeclinable)

इन्दुता (indutā) - moon-ness, the quality of being a moon

(noun)

Nominative, feminine, singular of indutā

indutā - moon-ness, the quality of being a moon

Formed with suffix -tā from indu

न (na) - not, no

(indeclinable)

अस्ति (asti) - is, exists

(verb)

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

Root: as (class 2)

एव (eva) - indeed, certainly, only

(indeclinable)

इह (iha) - here, in this world, in this case

(indeclinable)

जगत् (jagat) - world, universe

(noun)

neuter, singular of jagat

jagat - world, universe

Present Active Participle

From root gam (to go) with reduplication

Root: gam (class 1)

नाम (nāma) - by name, indeed, so-called

(indeclinable)

Used here adverbially to mean 'by name', 'so-called'. It is the neuter nominative/accusative singular form of nāman, but often used as an indeclinable particle to imply 'so-called' or 'indeed'. For contextual clarity, it's better to treat it as an indeclinable particle here, though grammatically it could be a noun.

Note: Used here as an indeclinable particle to mean 'so-called' or 'indeed'.

दृष्टम् (dṛṣṭam) - perceived, seen

(adjective)

neuter, singular of dṛṣṭa

dṛṣṭa - seen, perceived

Past Passive Participle

From root dṛś

Root: dṛś (class 1)

Note: Modifies 'jagat'.

अपि (api) - even, also, though

(indeclinable)

अमल-आत्मनि (amala-ātmani) - in the pure Self

(noun)

Locative, masculine, singular of amala-ātman

amala-ātman - pure Self, stainless Self

Compound of amala (pure) and ātman (Self)

Compound type : karmadharaya (amala+ātman)

• amala – pure, stainless, faultless
  adjective (masculine)
  'a' (not) + 'mala' (dirt/impurity)
  Prefix: a
• ātman – Self, soul, spirit
  noun (masculine)

Note: Refers to the Self (ātman).