योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-79, verse-18

देहकारणकः स्वप्नो देहाभावान्न दृश्यते ।
इति चेत्तददेहानां परलोकोऽपि नास्ति च ॥ १८ ॥

dehakāraṇakaḥ svapno dehābhāvānna dṛśyate ,
iti cettadadehānāṃ paraloko'pi nāsti ca 18

18. dehakāraṇakaḥ svapnaḥ dehābhāvāt na dṛśyate
iti cet tat adehānām paralokaḥ api na asti ca

18. cet (tvam vadasi) dehakāraṇakaḥ svapnaḥ dehābhāvāt na dṛśyate iti,
tat (tarhi) adehānām paralokaḥ api ca na asti (bhavati).

18. If it is argued that a dream, being caused by the body, is not perceived in the absence of the body, then, for those without bodies, the other world would also cease to exist.

Words meanings summery:

• देहकारणकः (dehakāraṇakaḥ) - caused by the body, having the body as its cause

• स्वप्नः (svapnaḥ) - dream, sleep

• देहाभावात् (dehābhāvāt) - due to the absence of the body, from the lack of a body

• न (na) - not, no

• दृश्यते (dṛśyate) - is seen, is perceived

• इति (iti) - thus, so, (marker for quoted speech or thought)

• चेत् (cet) - if

• तत् (tat) - then, therefore

• अदेहानाम् (adehānām) - for the bodiless, for those without bodies

• परलोकः (paralokaḥ) - the other world, the next world

• अपि (api) - also, even

• न (na) - not, no

• अस्ति (asti) - is, exists

• च (ca) - and, also

Words meanings and morphology

देहकारणकः (dehakāraṇakaḥ) - caused by the body, having the body as its cause

(adjective)

Nominative, masculine, singular of dehakāraṇaka

dehakāraṇaka - caused by the body, having the body as its cause

Compound type : tatpuruṣa (deha+kāraṇaka)

• deha – body, form, mass
  noun (masculine)
  Root: dih (class 4)
• kāraṇaka – having a cause, caused by
  adjective (masculine)
  From kāraṇa (cause) with suffix -ka.

स्वप्नः (svapnaḥ) - dream, sleep

(noun)

Nominative, masculine, singular of svapna

svapna - dream, sleep

From root svap (to sleep).

Root: svap (class 2)

देहाभावात् (dehābhāvāt) - due to the absence of the body, from the lack of a body

(noun)

Ablative, masculine, singular of dehābhāva

dehābhāva - absence of the body, non-existence of the body

Compound type : tatpuruṣa (deha+abhāva)

• deha – body, form, mass
  noun (masculine)
  Root: dih (class 4)
• abhāva – absence, non-existence, annihilation
  noun (masculine)
  From root bhū (to be) with negative prefix a.
  Prefix: a
  Root: bhū (class 1)

न (na) - not, no

(indeclinable)

दृश्यते (dṛśyate) - is seen, is perceived

(verb)

3rd person , singular, passive, present (laṭ) of dṛś

Passive form of the root dṛś.

Root: dṛś (class 1)

इति (iti) - thus, so, (marker for quoted speech or thought)

(indeclinable)

चेत् (cet) - if

(indeclinable)

तत् (tat) - then, therefore

(indeclinable)

Used adverbially from the pronoun tad.

अदेहानाम् (adehānām) - for the bodiless, for those without bodies

(adjective)

Genitive, masculine, plural of adeha

adeha - bodiless, incorporeal, without a body

Compound type : bahuvrīhi (a+deha)

• a – not, non-, un-
  indeclinable
  Negative prefix.
• deha – body, form, mass
  noun (masculine)
  Root: dih (class 4)

Note: Used here as a noun meaning 'those without bodies'.

परलोकः (paralokaḥ) - the other world, the next world

(noun)

Nominative, masculine, singular of paraloka

paraloka - the other world, the world beyond, afterlife

Compound type : tatpuruṣa (para+loka)

• para – other, another, supreme, highest
  adjective (masculine)
• loka – world, realm, people
  noun (masculine)
  From root lok (to see).
  Root: lok (class 1)

अपि (api) - also, even

(indeclinable)

न (na) - not, no

(indeclinable)

अस्ति (asti) - is, exists

(verb)

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

Root: as (class 2)

च (ca) - and, also

(indeclinable)