योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-155, verse-39

अथ दीर्घेण कालेन प्रस्फुरन्सर्गपर्णके ।
उद्वेगमेष्यसि व्योम्नि महामहिमनि स्वयम् ॥ ३९ ॥

atha dīrgheṇa kālena prasphuransargaparṇake ,
udvegameṣyasi vyomni mahāmahimani svayam 39

39. atha dīrgheṇa kālena prasphuran sargaparṇake
udvegam eṣyasi vyomni mahāmahimani svayam

39. atha dīrgheṇa kālena,
svayam prasphuran sargaparṇake,
vyomni mahāmahimani udvegam eṣyasi

39. Then, after a long time, you yourself, manifesting within the 'leaf' of creation, will experience a profound weariness (udvega) within the great majesty of space (vyoma).

Words meanings summery:

• अथ (atha) - now, then, moreover

• दीर्घेण (dīrgheṇa) - by a long, with a long

• कालेन (kālena) - by time, with time, after time

• प्रस्फुरन् (prasphuran) - appearing, manifesting, throbbing, glittering

• सर्गपर्णके (sargaparṇake) - in the leaf of creation (a metaphorical representation of creation as something delicate or transient)

• उद्वेगम् (udvegam) - a profound weariness (udvega) (weariness, distress, agitation, disgust)

• एष्यसि (eṣyasi) - you will attain, you will experience, you will go

• व्योम्नि (vyomni) - in the great majesty of space (vyoma) (in the sky, in space, in the cosmic expanse)

• महामहिमनि (mahāmahimani) - in the great glory, in the great majesty

• स्वयम् (svayam) - yourself, by yourself, spontaneously

Words meanings and morphology

अथ (atha) - now, then, moreover

(indeclinable)

दीर्घेण (dīrgheṇa) - by a long, with a long

(adjective)

Instrumental, masculine, singular of dīrgha

dīrgha - long, extensive, deep

कालेन (kālena) - by time, with time, after time

(noun)

Instrumental, masculine, singular of kāla

kāla - time, period, season, fate

प्रस्फुरन् (prasphuran) - appearing, manifesting, throbbing, glittering

(participle)

Nominative, masculine, singular of prasphurat

prasphurat - throbbing, trembling, manifesting, sparkling

Present Active Participle

Derived from root sphur with prefix pra.

Prefix: pra

Root: sphur (class 6)

सर्गपर्णके (sargaparṇake) - in the leaf of creation (a metaphorical representation of creation as something delicate or transient)

(noun)

Locative, neuter, singular of sargaparṇaka

sargaparṇaka - leaf of creation

Compound type : tatpurusha (sarga+parṇaka)

• sarga – creation, emanation
  noun (masculine)
  Root: sṛj (class 6)
• parṇaka – leaf, petal
  noun (neuter)

उद्वेगम् (udvegam) - a profound weariness (udvega) (weariness, distress, agitation, disgust)

(noun)

Accusative, masculine, singular of udvega

udvega - agitation, fear, disgust, weariness, disturbance

Prefix: ud

Root: vij (class 6)

एष्यसि (eṣyasi) - you will attain, you will experience, you will go

(verb)

2nd person , singular, active, future (lṛṭ) of iṣ

Future form of root i (to go/attain) or iṣ (to wish). Contextually, 'to attain/experience' fits.

Root: i (class 2)

व्योम्नि (vyomni) - in the great majesty of space (vyoma) (in the sky, in space, in the cosmic expanse)

(noun)

Locative, neuter, singular of vyoman

vyoman - sky, atmosphere, space, ether

महामहिमनि (mahāmahimani) - in the great glory, in the great majesty

(noun)

Locative, masculine, singular of mahāmahiman

mahāmahiman - great glory, supreme majesty

Compound type : karmadhāraya (mahā+mahiman)

• mahā – great, large
  adjective
• mahiman – greatness, majesty, glory
  noun (masculine)

स्वयम् (svayam) - yourself, by yourself, spontaneously

(indeclinable)