योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-188, verse-15

महाकल्पस्य पर्यन्ते सर्वनाशे स्थिरे स्थिते ।
महाशून्यपदे प्रौढे ब्रह्मात्मनि निरामये ॥ १५ ॥

mahākalpasya paryante sarvanāśe sthire sthite ,
mahāśūnyapade prauḍhe brahmātmani nirāmaye 15

15. mahā-kalpasya paryante sarva-nāśe sthire sthite
mahā-śūnya-pade prauḍhe brahma-ātmani nirāmaye

15. mahā-kalpasya paryante,
sarva-nāśe sthire sthite,
prauḍhe mahā-śūnya-pade,
nirāmaye brahma-ātmani

15. At the culmination of a great cosmic cycle (mahā-kalpa), when the complete dissolution of all is firmly established, in that vast state of the great void, which is the flawless self (ātman) that is ultimate reality (brahman).

Words meanings summery:

• महा-कल्पस्य (mahā-kalpasya) - of a great cosmic cycle

• पर्यन्ते (paryante) - at the end, at the culmination

• सर्व-नाशे (sarva-nāśe) - at the destruction of all, at the complete dissolution

• स्थिरे (sthire) - firmly, steady, unwavering

• स्थिते (sthite) - being established, situated

• महा-शून्य-पदे (mahā-śūnya-pade) - in the state of the great void

• प्रौढे (prauḍhe) - vast, mature, fully developed

• ब्रह्म-आत्मनि (brahma-ātmani) - in the self that is ultimate reality

• निरामये (nirāmaye) - flawless, free from affliction

Words meanings and morphology

महा-कल्पस्य (mahā-kalpasya) - of a great cosmic cycle

(noun)

Genitive, masculine, singular of mahā-kalpa

mahā-kalpa - great cosmic cycle (mahā-kalpa), a long period of time (4.32 billion years)

Compound type : karmadhāraya (mahā+kalpa)

• mahā – great, large, mighty
  adjective
• kalpa – cosmic cycle, eon, period of time
  noun (masculine)

पर्यन्ते (paryante) - at the end, at the culmination

(noun)

Locative, masculine, singular of paryanta

paryanta - end, boundary, limit, culmination

सर्व-नाशे (sarva-nāśe) - at the destruction of all, at the complete dissolution

(noun)

Locative, masculine, singular of sarva-nāśa

sarva-nāśa - destruction of all, universal destruction

Compound type : tatpuruṣa (sarva+nāśa)

• sarva – all, every, whole
  pronoun (masculine)
• nāśa – destruction, ruin, loss, perishing
  noun (masculine)
  From root 'naś' (to perish, to be lost)
  Root: naś (class 4)

स्थिरे (sthire) - firmly, steady, unwavering

(adjective)

Locative, masculine, singular of sthira

sthira - firm, steady, stable, constant, fixed

स्थिते (sthite) - being established, situated

(adjective)

Locative, masculine, singular of sthita

sthita - stood, situated, established, existing, firm

Past Passive Participle

Past Passive Participle of root 'sthā' (to stand, to be, to remain)

Root: sthā (class 1)

महा-शून्य-पदे (mahā-śūnya-pade) - in the state of the great void

(noun)

Locative, neuter, singular of mahā-śūnya-pada

mahā-śūnya-pada - state of the great void

Compound type : karmadhāraya (mahā+śūnya+pada)

• mahā – great, large, mighty
  adjective
• śūnya – empty, void, nothingness, zero
  adjective (masculine)
• pada – state, position, place, step
  noun (neuter)

प्रौढे (prauḍhe) - vast, mature, fully developed

(adjective)

Locative, neuter, singular of prauḍha

prauḍha - mature, developed, vast, intense, strong

From prefix 'pra' + root 'vah' (to carry)

Prefix: pra

Root: vah (class 1)

ब्रह्म-आत्मनि (brahma-ātmani) - in the self that is ultimate reality

(noun)

Locative, masculine, singular of brahma-ātman

brahma-ātman - the Self that is Brahman, the supreme Self

Compound type : tatpuruṣa (brahman+ātman)

• brahman – ultimate reality (brahman), the Absolute, the supreme spirit
  noun (neuter)
• ātman – self (ātman), soul, spirit, essence
  noun (masculine)

निरामये (nirāmaye) - flawless, free from affliction

(adjective)

Locative, masculine, singular of nirāmaya

nirāmaya - free from disease/illness, healthy, flawless, perfect

From 'nis' (without) + 'āmaya' (illness, disease)