योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-53, verse-31

यावद्वेतालसंकल्पो बालस्य किल विद्यते ।
निर्वेतालधियस्तावदुदयस्तस्य कः कथम् ॥ ३१ ॥

yāvadvetālasaṃkalpo bālasya kila vidyate ,
nirvetāladhiyastāvadudayastasya kaḥ katham 31

31. yāvat vetālasaṅkalpaḥ bālasya kila vidyate |
nirvetāladhiyaḥ tāvat udayaḥ tasya kaḥ katham ||

31. bālasya yāvat vetālasaṅkalpaḥ kila vidyate
tāvat tasya nirvetāladhiyaḥ udayaḥ kaḥ katham

31. As long as the delusion of a demon (vetāla-saṅkalpa) persists for a child, how can the wisdom free from such delusions (nirvetāla-dhi) arise in them?

Words meanings summery:

• यावत् (yāvat) - as long as, while, until

• वेतालसङ्कल्पः (vetālasaṅkalpaḥ) - the delusion of a demon (vetāla-saṅkalpa) (the notion of a demon, the thought of a ghost)

• बालस्य (bālasya) - of the child, of the ignorant person

• किल (kila) - indeed, surely, as if, for

• विद्यते (vidyate) - exists, is present, is found

• निर्वेतालधियः (nirvetāladhiyaḥ) - of the wisdom free from such delusions (nirvetāla-dhi) (of the intellect free from demons/delusions)

• तावत् (tāvat) - then, so long, so much

• उदयः (udayaḥ) - rising, appearance, origin, dawn

• तस्य (tasya) - of him, of it, his, its

• कः (kaḥ) - who?, what?

• कथम् (katham) - how?, in what manner?

Words meanings and morphology

यावत् (yāvat) - as long as, while, until

(indeclinable)

वेतालसङ्कल्पः (vetālasaṅkalpaḥ) - the delusion of a demon (vetāla-saṅkalpa) (the notion of a demon, the thought of a ghost)

(noun)

Nominative, masculine, singular of vetālasaṅkalpa

vetālasaṅkalpa - a thought or conception of a vetāla (ghoul/demon)

Compound type : tatpuruṣa (vetāla+saṅkalpa)

• vetāla – a ghost, demon, ghoul
  noun (masculine)
• saṅkalpa – intention, resolve, conception, idea, desire
  noun (masculine)
  from sam-kḷp
  Prefix: sam
  Root: kḷp (class 1)

बालस्य (bālasya) - of the child, of the ignorant person

(noun)

Genitive, masculine, singular of bāla

bāla - child, boy, young, ignorant, foolish

किल (kila) - indeed, surely, as if, for

(indeclinable)

विद्यते (vidyate) - exists, is present, is found

(verb)

3rd person , singular, middle, present (lat) of vid

Root: vid (class 4)

निर्वेतालधियः (nirvetāladhiyaḥ) - of the wisdom free from such delusions (nirvetāla-dhi) (of the intellect free from demons/delusions)

(noun)

Genitive, feminine, singular of nirvetāladhi

nirvetāladhi - intellect free from vetālas (demons/delusions)

Compound type : bahuvrīhi (nis+vetāla+dhī)

• nis – without, out, free from
  indeclinable
  prefix for negation or absence
• vetāla – a ghost, demon, ghoul
  noun (masculine)
• dhī – intellect, understanding, wisdom, thought
  noun (feminine)

तावत् (tāvat) - then, so long, so much

(indeclinable)

उदयः (udayaḥ) - rising, appearance, origin, dawn

(noun)

Nominative, masculine, singular of udaya

udaya - rising, appearance, dawn, growth, prosperity

Derived from ud-i

Prefix: ud

Root: i (class 2)

तस्य (tasya) - of him, of it, his, its

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

कः (kaḥ) - who?, what?

(pronoun)

Nominative, masculine, singular of kim

kim - who?, what?, which?

कथम् (katham) - how?, in what manner?

(indeclinable)