योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-39, verse-5

निःसत्त्वेषु तमोन्धेषु रसनारसशालिषु ।
संकोचमाययुः पद्मामृतानां हृदयेष्विव ॥ ५ ॥

niḥsattveṣu tamondheṣu rasanārasaśāliṣu ,
saṃkocamāyayuḥ padmāmṛtānāṃ hṛdayeṣviva 5

5. niḥsattveṣu tamaḥ andheṣu rasanārasaśāliṣu
saṅkocam āyayuḥ padmāmṛtānām hṛdayeṣu iva

5. niḥsattveṣu tamaḥ andheṣu rasanārasaśāliṣu
hṛdayeṣu iva padmāmṛtānām saṅkocam āyayuḥ

5. The nectar-like lotuses closed (contracted), just as hearts would, when they are devoid of vitality, blinded by darkness, and preoccupied with the flavors of sensory experience.

Words meanings summery:

• निःसत्त्वेषु (niḥsattveṣu) - devoid of strength/vitality, lifeless, without essence

• तमः (tamaḥ) - darkness, gloom, ignorance

• अन्धेषु (andheṣu) - blinded (by darkness) (blind, dark, obscured)

• रसनारसशालिषु (rasanārasaśāliṣu) - possessing flavors of the tongue, indulging in sensory pleasures

• सङ्कोचम् (saṅkocam) - contraction, shrinking, closing

• आययुः (āyayuḥ) - they attained (contraction) (they obtained, they reached, they went to)

• पद्मामृतानाम् (padmāmṛtānām) - of the nectar-like lotuses

• हृदयेषु (hṛdayeṣu) - in hearts

• इव (iva) - like, as if, as

Words meanings and morphology

निःसत्त्वेषु (niḥsattveṣu) - devoid of strength/vitality, lifeless, without essence

(adjective)

Locative, masculine, plural of niḥsattva

niḥsattva - devoid of strength, spirit, vitality, or reality

Compound type : bahuvrīhi (nis+sattva)

• nis – without, out, away, absence of
  indeclinable
• sattva – being, existence, essence, spirit, strength, vitality, goodness
  noun (neuter)
  Root: as (class 2)

तमः (tamaḥ) - darkness, gloom, ignorance

(noun)

neuter, singular of tamas

tamas - darkness, gloom, obscurity; ignorance, inertia

Note: Used here as the first part of a compound with andheṣu, forming 'blinded by darkness'.

अन्धेषु (andheṣu) - blinded (by darkness) (blind, dark, obscured)

(adjective)

Locative, masculine, plural of andha

andha - blind, dark, obscured, ignorant

Note: Forms a compound 'tamo'ndheṣu' with tamas (darkness) meaning 'blinded by darkness'.

रसनारसशालिषु (rasanārasaśāliṣu) - possessing flavors of the tongue, indulging in sensory pleasures

(adjective)

Locative, masculine, plural of rasanārasaśālin

rasanārasaśālin - possessing the flavors/pleasures of the tongue (or senses)

Compound type : bahuvrīhi (rasanā+rasa+śālin)

• rasanā – tongue; sense of taste
  noun (feminine)
• rasa – juice, sap, flavor, taste, pleasure, sentiment
  noun (masculine)
• śālin – possessing, endowed with, characterized by
  adjective (masculine)
  Root: śāl (class 1)

सङ्कोचम् (saṅkocam) - contraction, shrinking, closing

(noun)

Accusative, masculine, singular of saṅkoca

saṅkoca - contraction, shrinking, closing, drawing in

Prefixes: sam+ko

Root: kuc (class 6)

आययुः (āyayuḥ) - they attained (contraction) (they obtained, they reached, they went to)

(verb)

3rd person , plural, active, perfect (lit) of i

Prefix: ā

Root: i (class 2)

पद्मामृतानाम् (padmāmṛtānām) - of the nectar-like lotuses

(noun)

Genitive, neuter, plural of padmāmṛta

padmāmṛta - a lotus that is like nectar, or nectar of a lotus

Compound type : karmadhāraya (padma+amṛta)

• padma – lotus flower, water lily
  noun (neuter)
• amṛta – nectar, ambrosia; immortal, deathless
  noun (neuter)

हृदयेषु (hṛdayeṣu) - in hearts

(noun)

Locative, neuter, plural of hṛdaya

hṛdaya - heart, mind, soul, core

इव (iva) - like, as if, as

(indeclinable)