योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-69, verse-18

इति गगनगतस्त्रिलोकनाथो गगनगसिद्धग्रहीतसिद्धमन्त्रः ।
गत उपगतशक्रवन्द्यमानो निजपुरमक्षयमायमुज्ज्वलश्रीः ॥ १८ ॥

iti gaganagatastrilokanātho gaganagasiddhagrahītasiddhamantraḥ ,
gata upagataśakravandyamāno nijapuramakṣayamāyamujjvalaśrīḥ 18

18. iti gagana-gataḥ tri-loka-nāthaḥ
gagana-ga-siddha-grahīta-siddha-mantraḥ
gataḥ upagata-śakra-vandyamānaḥ
nija-puram akṣayam āyam ujjvala-śrīḥ

18. iti tri-loka-nāthaḥ gagana-gataḥ
gagana-ga-siddha-grahīta-siddha-mantraḥ
upagata-śakra-vandyamānaḥ ujjvala-śrīḥ
akṣayam āyam nija-puram gataḥ

18. Thus, the lord of the three worlds, moving through the sky, whose perfected incantations (mantra) were grasped by the sky-dwelling perfected beings (siddha), departed. Approached and worshipped by Indra (śakra), he, possessing brilliant splendor, reached his imperishable, prosperous abode.

Words meanings summery:

• इति (iti) - thus, in this way, thereupon

• गगन-गतः (gagana-gataḥ) - moving in the sky, sky-dweller

• त्रि-लोक-नाथः (tri-loka-nāthaḥ) - lord of the three worlds

• गगन-ग-सिद्ध-ग्रहीत-सिद्ध-मन्त्रः (gagana-ga-siddha-grahīta-siddha-mantraḥ) - he whose perfected incantations (mantra) were grasped by the sky-dwelling perfected beings (siddha)

• गतः (gataḥ) - departed, gone, reached

• उपगत-शक्र-वन्द्यमानः (upagata-śakra-vandyamānaḥ) - approached and worshipped by Indra (śakra)

• निज-पुरम् (nija-puram) - his own abode/city

• अक्षयम् (akṣayam) - imperishable, indestructible

• आयम् (āyam) - prosperous (gain, income, prosperity)

• उज्ज्वल-श्रीः (ujjvala-śrīḥ) - of brilliant splendor, possessing shining glory

Words meanings and morphology

इति (iti) - thus, in this way, thereupon

(indeclinable)

गगन-गतः (gagana-gataḥ) - moving in the sky, sky-dweller

(adjective)

Nominative, masculine, singular of gagana-gata

gagana-gata - moving in the sky, sky-dweller

Compound formed from 'gagana' (sky) and 'gata' (gone/moving).

Compound type : tatpuruṣa (gagana+gata)

• gagana – sky, heaven, atmosphere
  noun (neuter)
• gata – gone, departed, reached, moving, situated in
  adjective (masculine)
  Past Passive Participle
  From the root 'gam' (to go).
  Root: gam (class 1)

त्रि-लोक-नाथः (tri-loka-nāthaḥ) - lord of the three worlds

(noun)

Nominative, masculine, singular of tri-loka-nātha

tri-loka-nātha - lord of the three worlds (heaven, earth, and netherworld)

Compound formed from 'tri' (three), 'loka' (world), and 'nātha' (lord).

Compound type : tatpuruṣa (tri+loka+nātha)

• tri – three
  adjective
• loka – world, realm, people
  noun (masculine)
• nātha – lord, master, protector
  noun (masculine)

गगन-ग-सिद्ध-ग्रहीत-सिद्ध-मन्त्रः (gagana-ga-siddha-grahīta-siddha-mantraḥ) - he whose perfected incantations (mantra) were grasped by the sky-dwelling perfected beings (siddha)

(adjective)

Nominative, masculine, singular of gagana-ga-siddha-grahīta-siddha-mantra

gagana-ga-siddha-grahīta-siddha-mantra - one whose perfected incantations (mantra) were grasped by the sky-dwelling perfected beings (siddha)

Bahuvrīhi compound describing the 'tri-loka-nātha', indicating that the perfected mantras were received/grasped by the sky-dwelling siddhas.

Compound type : bahuvrīhi (gagana-ga-siddha+grahīta+siddha-mantra)

• gagana-ga-siddha – perfected beings (siddha) dwelling in the sky
  noun (masculine)
  Tatpuruṣa compound: 'gagana-ga' (sky-dweller) + 'siddha' (perfected being).
• grahīta – grasped, received, taken
  adjective (masculine)
  Past Passive Participle
  From the root 'grah' (to seize, grasp).
  Root: grah (class 9)
• siddha-mantra – perfected incantation (mantra), effective sacred formula
  noun (masculine)
  Tatpuruṣa compound: 'siddha' (perfected) + 'mantra' (incantation).

गतः (gataḥ) - departed, gone, reached

(adjective)

Nominative, masculine, singular of gata

gata - gone, departed, reached, moving, situated in

Past Passive Participle

From the root 'gam' (to go).

Root: gam (class 1)

उपगत-शक्र-वन्द्यमानः (upagata-śakra-vandyamānaḥ) - approached and worshipped by Indra (śakra)

(adjective)

Nominative, masculine, singular of upagata-śakra-vandyamāna

upagata-śakra-vandyamāna - one who is approached and worshipped by Indra (śakra)

Bahuvrīhi compound describing the 'tri-loka-nātha'.

Compound type : bahuvrīhi (upagata+śakra+vandyamāna)

• upagata – approached, arrived, undergone
  adjective (masculine)
  Past Passive Participle
  From the root 'gam' with prefix 'upa'.
  Prefix: upa
  Root: gam (class 1)
• śakra – Indra (king of gods)
  proper noun (masculine)
• vandyamāna – being worshipped, being praised, being saluted
  adjective (masculine)
  Present Passive Participle
  From the root 'vand' (to worship, praise).
  Root: vand (class 1)

निज-पुरम् (nija-puram) - his own abode/city

(noun)

Accusative, neuter, singular of nija-pura

nija-pura - one's own city or abode

Tatpuruṣa compound: 'nija' (own) + 'pura' (city/abode).

Compound type : tatpuruṣa (nija+pura)

• nija – own, innate, native
  adjective
• pura – city, town, abode, dwelling
  noun (neuter)

अक्षयम् (akṣayam) - imperishable, indestructible

(adjective)

Accusative, neuter, singular of akṣaya

akṣaya - imperishable, indestructible, eternal, unfading

From 'a' (negation) + 'kṣaya' (perishable, declining).

Compound type : nañ-tatpuruṣa (a+kṣaya)

• a – not, non-
  indeclinable
• kṣaya – decay, destruction, loss, decline, perishable
  noun (masculine)
  Root: kṣi (class 1)

Note: Modifies 'puram'.

आयम् (āyam) - prosperous (gain, income, prosperity)

(noun)

Accusative, neuter, singular of āya

āya - gain, income, prosperity, arrival

From prefix 'ā' + root 'i' (to go).

Prefix: ā

Root: i (class 2)

Note: Modifies 'puram'.

उज्ज्वल-श्रीः (ujjvala-śrīḥ) - of brilliant splendor, possessing shining glory

(adjective)

Nominative, masculine, singular of ujjvala-śrī

ujjvala-śrī - of brilliant splendor, possessing shining glory

Bahuvrīhi compound: 'ujjvala' (brilliant) + 'śrī' (splendor).

Compound type : bahuvrīhi (ujjvala+śrī)

• ujjvala – shining, brilliant, radiant, splendid
  adjective
  From 'ud' + 'jval' (to shine).
  Prefix: ud
  Root: jval (class 1)
• śrī – splendor, glory, prosperity, beauty, fortune
  noun (feminine)

Note: Modifies 'tri-loka-nāthaḥ'.