योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-54, verse-8

निगीर्णमातुलिङ्गस्य कनकप्रत्ययो यथा ।
स्वयमभ्येत्य सत्योऽन्तः संकल्पस्ते तथा हृदि ॥ ८ ॥

nigīrṇamātuliṅgasya kanakapratyayo yathā ,
svayamabhyetya satyo'ntaḥ saṃkalpaste tathā hṛdi 8

8. nigīrṇamātuliṅgasya kanakapratyayaḥ yathā svayam
abhyetya satyaḥ antaḥ saṅkalpaḥ te tathā hṛdi

8. yathā nigīrṇamātuliṅgasya kanakapratyayaḥ tathā
te antaḥ saṅkalpaḥ svayam abhyetya satyaḥ hṛdi

8. Just as one who has swallowed a citrus fruit (mātuliṅga) develops a conviction that it is gold, similarly, your intention (saṅkalpa) becomes truly established within your heart (hṛdi) by itself.

Words meanings summery:

• निगीर्णमातुलिङ्गस्य (nigīrṇamātuliṅgasya) - of one who has swallowed a citrus fruit

• कनकप्रत्ययः (kanakapratyayaḥ) - conviction of gold, belief in gold

• यथा (yathā) - just as, as

• स्वयम् (svayam) - by itself, oneself

• अभ्येत्य (abhyetya) - having approached, having come to

• सत्यः (satyaḥ) - true, real

• अन्तः (antaḥ) - inside, inner

• सङ्कल्पः (saṅkalpaḥ) - intention, resolve

• ते (te) - your

• तथा (tathā) - similarly, thus

• हृदि (hṛdi) - in the heart

Words meanings and morphology

निगीर्णमातुलिङ्गस्य (nigīrṇamātuliṅgasya) - of one who has swallowed a citrus fruit

(noun)

Genitive, masculine, singular of nigīrṇamātuliṅga

nigīrṇamātuliṅga - one who has swallowed a citrus fruit

Compound type : bahuvrihi (nigīrṇa+mātuliṅga)

• nigīrṇa – swallowed, consumed
  adjective (neuter)
  Past Passive Participle
  Derived from the root 'gṛ' (to swallow) with the prefix 'ni'.
  Prefix: ni
  Root: gṛ (class 6)
• mātuliṅga – citrus fruit, citron
  noun (masculine)

कनकप्रत्ययः (kanakapratyayaḥ) - conviction of gold, belief in gold

(noun)

Nominative, masculine, singular of kanakapratyaya

kanakapratyaya - belief in gold, conviction of gold, the idea of gold

Compound type : tatpurusha (kanaka+pratyaya)

• kanaka – gold
  noun (neuter)
• pratyaya – conviction, belief, idea, notion
  noun (masculine)
  Prefix: prati
  Root: i (class 2)

यथा (yathā) - just as, as

(indeclinable)

स्वयम् (svayam) - by itself, oneself

(indeclinable)

अभ्येत्य (abhyetya) - having approached, having come to

(indeclinable)

Absolutive

Derived from the root 'i' (to go) with the prefix 'abhi'.

Prefix: abhi

Root: i (class 2)

सत्यः (satyaḥ) - true, real

(adjective)

Nominative, masculine, singular of satya

satya - true, real, existent; truth, reality

अन्तः (antaḥ) - inside, inner

(adjective)

Nominative, masculine, singular of antar

antar - inside, inner, internal, middle

सङ्कल्पः (saṅkalpaḥ) - intention, resolve

(noun)

Nominative, masculine, singular of saṅkalpa

saṅkalpa - intention, resolve, determination, volition

Prefix: sam

Root: kḷp (class 1)

ते (te) - your

(pronoun)

Genitive, singular of tvad

tvad - you (pronominal stem)

Note: Can also be dative

तथा (tathā) - similarly, thus

(indeclinable)

हृदि (hṛdi) - in the heart

(noun)

Locative, neuter, singular of hṛd

hṛd - heart, mind, soul