योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-1, verse-19

नीरसा एव ते सन्तु समस्तेन्द्रियसंविदः ।
आकारमात्रसंलक्ष्या हेमन्तर्तौ लता इव ॥ १९ ॥

nīrasā eva te santu samastendriyasaṃvidaḥ ,
ākāramātrasaṃlakṣyā hemantartau latā iva 19

19. nīrasāḥ eva te santu samastendriyasaṃvidaḥ |
ākāramātrasaṃlakṣyāḥ hemantartau latāḥ iva ||

19. te samastendriyasaṃvidaḥ nīrasāḥ eva santu,
hemantartau latāḥ iva ākāramātrasaṃlakṣyāḥ [santu].

19. Let all your sensory perceptions (saṃvid) be entirely devoid of inner essence (nīrasa), discernible merely by their outward form, just like vines during the winter season (hemanta).

Words meanings summery:

• नीरसाः (nīrasāḥ) - lacking internal emotional or personal 'flavor' or engagement (devoid of essence/sap/taste, insipid, uninteresting)

• एव (eva) - entirely, solely (indeed, only, certainly)

• ते (te) - your (referring to the practitioner's perceptions) (your, those)

• सन्तु (santu) - let them be

• समस्तेन्द्रियसंविदः (samastendriyasaṁvidaḥ) - all the perceptions arising from your sense organs (all sensory perceptions/awarenesses)

• आकारमात्रसंलक्ष्याः (ākāramātrasaṁlakṣyāḥ) - observed superficially, without delving into their deeper nature or meaning (discernible only by form, perceptible merely by appearance)

• हेमन्तर्तौ (hemantartau) - in the winter season

• लताः (latāḥ) - vines, creepers

• इव (iva) - like, as if, similar to

Words meanings and morphology

नीरसाः (nīrasāḥ) - lacking internal emotional or personal 'flavor' or engagement (devoid of essence/sap/taste, insipid, uninteresting)

(adjective)

Nominative, feminine, plural of nīrasa

nīrasa - tasteless, insipid, devoid of essence, lacking feeling

Compound type : bahuvrīhi (nir+rasa)

• nir – without, out of, away from
  prefix
• rasa – essence, sap, taste, sentiment
  noun (masculine)
  Root: ras (class 1)

Note: Agrees with 'samastendriyasaṃvidaḥ'.

एव (eva) - entirely, solely (indeed, only, certainly)

(indeclinable)

ते (te) - your (referring to the practitioner's perceptions) (your, those)

(pronoun)

Genitive, singular of yuṣmad

yuṣmad - you

Note: Possessive pronoun referring to the implied 'you'.

सन्तु (santu) - let them be

(verb)

3rd person , plural, active, imperative (loṭ) of as

Root: as (class 2)

समस्तेन्द्रियसंविदः (samastendriyasaṁvidaḥ) - all the perceptions arising from your sense organs (all sensory perceptions/awarenesses)

(noun)

Nominative, feminine, plural of samastendriyasaṃvid

samastendriyasaṁvid - awareness of all senses, perception through all senses

Compound type : tatpuruṣa (samastendriya+saṃvid)

• samastendriya – all senses, the totality of senses
  noun (neuter)
• saṃvid – perception, consciousness, knowledge, intelligence
  noun (feminine)
  Derived from root vid (to know) with prefix sam-
  Prefix: sam
  Root: vid (class 2)

Note: Subject of 'santu'.

आकारमात्रसंलक्ष्याः (ākāramātrasaṁlakṣyāḥ) - observed superficially, without delving into their deeper nature or meaning (discernible only by form, perceptible merely by appearance)

(adjective)

Nominative, feminine, plural of ākāramātrasaṃlakṣya

ākāramātrasaṁlakṣya - perceptible only by its form/appearance

Gerundive

Formed by ākāramātra (mere form) + saṃlakṣya (perceptible gerundive of sam-lakṣ)

Compound type : tatpuruṣa (ākāramātra+saṃlakṣya)

• ākāramātra – mere form, only appearance
  noun (neuter)
• saṃlakṣya – to be perceived, discernible, observable
  verbal derivative (masculine)
  Gerundive
  Derived from root lakṣ (to perceive) with prefix sam- and suffix -ya
  Prefix: sam
  Root: lakṣ (class 10)

Note: Agrees with 'samastendriyasaṃvidaḥ'.

हेमन्तर्तौ (hemantartau) - in the winter season

(noun)

Locative, masculine, singular of hemantartu

hemantartu - the winter season

Compound type : dvandva (hemanta+ṛtu)

• hemanta – winter
  noun (masculine)
• ṛtu – season, fixed time
  noun (masculine)

लताः (latāḥ) - vines, creepers

(noun)

Nominative, feminine, plural of latā

latā - creeper, vine, slender branch

इव (iva) - like, as if, similar to

(indeclinable)