योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-128, verse-52

मनस्यस्तं गते पुंसां तदन्यन्नोपलभ्यते ।
प्रशान्तामृतकल्लोले केवलामृतवारिधौ ॥ ५२ ॥

manasyastaṃ gate puṃsāṃ tadanyannopalabhyate ,
praśāntāmṛtakallole kevalāmṛtavāridhau 52

52. manasi astam gate puṃsām tat anyat na upalabhyate
praśāntāmṛtakallole kevalāmṛtavāridhau

52. puṃsām manasi astam gate,
tat anyat na upalabhyate praśāntāmṛtakallole kevalāmṛtavāridhau

52. When the mind (manas) of individuals has completely subsided, nothing else is perceived, for they are immersed in that ocean of pure immortality, whose waves are utterly tranquil and nectar-like.

Words meanings summery:

• मनसि (manasi) - in the mind, in the intellect, in the heart

• अस्तम् (astam) - setting, disappearance, end, home

• गते (gate) - having gone, having disappeared, reached

• पुंसाम् (puṁsām) - of persons, of men, of living beings

• तत् (tat) - that, then, therefore

• अन्यत् (anyat) - other, different, anything else

• न (na) - not, no

• उपलभ्यते (upalabhyate) - is perceived, is obtained, is found

• प्रशान्तामृतकल्लोले (praśāntāmṛtakallole) - in the waves of tranquil nectar, in the tranquil nectar-like waves

• केवलामृतवारिधौ (kevalāmṛtavāridhau) - in the ocean of pure nectar, in the ocean of pure immortality

Words meanings and morphology

मनसि (manasi) - in the mind, in the intellect, in the heart

(noun)

Locative, neuter, singular of manas

manas - mind, intellect, heart, consciousness

अस्तम् (astam) - setting, disappearance, end, home

(noun)

Accusative, neuter, singular of asta

asta - setting, disappearance, home, west

Note: Used adverbially to mean 'to set' or 'to disappear' with verbs like 'gam' or 'bhū'.

गते (gate) - having gone, having disappeared, reached

(adjective)

Locative, neuter, singular of gata

gata - gone, departed, reached, passed

Past Passive Participle

Derived from root 'gam' (to go)

Root: gam (class 1)

Note: Part of a locative absolute construction: 'manasi astam gate' (when the mind has set).

पुंसाम् (puṁsām) - of persons, of men, of living beings

(noun)

Genitive, masculine, plural of puṃs

puṁs - man, person, male, spirit

तत् (tat) - that, then, therefore

(pronoun)

Nominative, neuter, singular of tad

tad - that (demonstrative pronoun)

Note: Functions adverbially, meaning 'then' or 'in that state'.

अन्यत् (anyat) - other, different, anything else

(pronoun)

Nominative, neuter, singular of anya

anya - other, another, different

न (na) - not, no

(indeclinable)

उपलभ्यते (upalabhyate) - is perceived, is obtained, is found

(verb)

3rd person , singular, passive, present (lat) of labh

Prefix: upa

Root: labh (class 1)

प्रशान्तामृतकल्लोले (praśāntāmṛtakallole) - in the waves of tranquil nectar, in the tranquil nectar-like waves

(noun)

Locative, masculine, singular of praśāntāmṛtakallola

praśāntāmṛtakallola - waves of tranquil nectar, tranquil nectar-like waves

Compound type : Karmadhāraya (praśānta+amṛta+kallola)

• praśānta – tranquil, calm, pacified
  adjective
  Past Passive Participle
  Derived from root 'śam' with prefix 'pra'
  Prefix: pra
  Root: śam (class 4)
• amṛta – nectar, immortality, deathless
  noun (neuter)
• kallola – wave, billow
  noun (masculine)

केवलामृतवारिधौ (kevalāmṛtavāridhau) - in the ocean of pure nectar, in the ocean of pure immortality

(noun)

Locative, masculine, singular of kevalāmṛtavāridhi

kevalāmṛtavāridhi - ocean of pure nectar, ocean of pure immortality

Compound type : Karmadhāraya (kevala+amṛta+vāridhi)

• kevala – pure, sole, only, absolute
  adjective
• amṛta – nectar, immortality, deathless
  noun (neuter)
• vāridhi – ocean, sea (literally 'water-holder')
  noun (masculine)