योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-38, verse-12

आकल्पान्तं त्रिभुवनं यदिदं कल्पितं मया ।
नाशमेष्यत्यकालेन तापे हिमकणो यथा ॥ १२ ॥

ākalpāntaṃ tribhuvanaṃ yadidaṃ kalpitaṃ mayā ,
nāśameṣyatyakālena tāpe himakaṇo yathā 12

12. ākalpāntam tribhuvanam yat idam kalpitam mayā
nāśam eṣyati akālena tāpe himakaṇaḥ yathā

12. idam yat tribhuvanam mayā ākalpāntam kalpitam,
(tat) akālena nāśam eṣyati,
yathā tāpe himakaṇaḥ (eṣyati)

12. This three-world existence, which I have conceptualized to last until the end of a cosmic age (kalpa), will quickly perish, just as a drop of snow (or ice) melts in heat.

Words meanings summery:

• आकल्पान्तम् (ākalpāntam) - until the end of a kalpa, for the duration of a cosmic age

• त्रिभुवनम् (tribhuvanam) - the three worlds, the three realms

• यत् (yat) - which, what

• इदम् (idam) - this, this one

• कल्पितम् (kalpitam) - imagined, created, conceptualized

• मया (mayā) - by me

• नाशम् (nāśam) - destruction, ruin

• एष्यति (eṣyati) - will go, will attain, will reach

• अकालेन (akālena) - prematurely, swiftly, in a short time

• तापे (tāpe) - in heat, due to heat

• हिमकणः (himakaṇaḥ) - a drop of snow/ice/dew

• यथा (yathā) - just as, like, as

Words meanings and morphology

आकल्पान्तम् (ākalpāntam) - until the end of a kalpa, for the duration of a cosmic age

(indeclinable)

compound with ā- prefix indicating 'until'

Compound type : avyayībhāva (ā+kalpa+anta)

• ā – until, up to
  indeclinable
  Preposition/prefix
• kalpa – cosmic age, aeon, fixed rule
  noun (masculine)
• anta – end, limit, boundary
  noun (masculine)

Note: Accusative singular neuter, functioning adverbially.

त्रिभुवनम् (tribhuvanam) - the three worlds, the three realms

(noun)

Accusative, neuter, singular of tribhuvana

tribhuvana - the three worlds (heaven, earth, and netherworld)

Compound type : dvigu (tri+bhuvana)

• tri – three
  numeral
• bhuvana – world, realm, existence
  noun (neuter)
  Root: bhū (class 1)

Note: Object of kalpitam.

यत् (yat) - which, what

(pronoun)

Nominative, neuter, singular of yad

yad - which, what, that

Note: Relative pronoun for tribhuvanam.

इदम् (idam) - this, this one

(pronoun)

Nominative, neuter, singular of idam

idam - this, here

Note: Demonstrative pronoun for tribhuvanam.

कल्पितम् (kalpitam) - imagined, created, conceptualized

(adjective)

Nominative, neuter, singular of kalpita

kalpita - imagined, fashioned, arranged, created

Past Passive Participle

Derived from root kḷp

Root: kḷp (class 1)

Note: Agrees with tribhuvanam.

मया (mayā) - by me

(pronoun)

Instrumental, singular of aham

aham - I, myself

Note: Agent of passive participle kalpitam.

नाशम् (nāśam) - destruction, ruin

(noun)

Accusative, masculine, singular of nāśa

nāśa - destruction, ruin, loss

Root: naś (class 4)

Note: Object of eṣyati (used with verb of motion to indicate purpose/destination).

एष्यति (eṣyati) - will go, will attain, will reach

(verb)

3rd person , singular, active, future (lṛṭ) of i

Root: i (class 2)

Note: Subject is tribhuvanam.

अकालेन (akālena) - prematurely, swiftly, in a short time

(adjective)

Instrumental, masculine, singular of akāla

akāla - untimely, not a long time, swift

Compound type : nañ-tatpuruṣa (a+kāla)

• a – not, non-
  indeclinable
  Negative prefix
• kāla – time, period
  noun (masculine)

Note: Instrumental of cause/manner, meaning "by (means of) no time" or "in an untimely manner".

तापे (tāpe) - in heat, due to heat

(noun)

Locative, masculine, singular of tāpa

tāpa - heat, warmth, suffering, pain

Root: tap (class 1)

Note: Denotes circumstance.

हिमकणः (himakaṇaḥ) - a drop of snow/ice/dew

(noun)

Nominative, masculine, singular of himakaṇa

himakaṇa - a particle of snow, a drop of dew, a hailstone

Compound type : tatpuruṣa (hima+kaṇa)

• hima – snow, ice, cold
  noun (neuter)
• kaṇa – grain, particle, drop, speck
  noun (masculine)

Note: Subject of the implied verb in the simile.

यथा (yathā) - just as, like, as

(indeclinable)

Note: Introduces a comparison.