योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-93, verse-16

किमिदं स्याज्जगत्किं स्याद्देहमित्यनिशं शनैः ।
विचारयाध्यात्मदृशा स्वयं वा सज्जनैः सह ॥ १६ ॥

kimidaṃ syājjagatkiṃ syāddehamityaniśaṃ śanaiḥ ,
vicārayādhyātmadṛśā svayaṃ vā sajjanaiḥ saha 16

16. kim idam syāt jagat kim syāt deham iti anisam śanaiḥ
vicāraya adhyātmadṛśā svayam vā sajjanaiḥ saha

16. kim idam jagat syāt kim deham syāt iti anisam śanaiḥ
svayam vā sajjanaiḥ saha adhyātmadṛśā vicāraya

16. “What is this world? What is this body?” — Constantly and gradually investigate these questions either by your own spiritual perspective (adhyātma-dṛś) or in the company of virtuous people.

Words meanings summery:

• किम् (kim) - what? why?

• इदम् (idam) - this, this here

• स्यात् (syāt) - may be, might be, should be, would be

• जगत् (jagat) - world, universe, moving

• किम् (kim) - what? why?

• स्यात् (syāt) - may be, might be, should be, would be

• देहम् (deham) - body, form, mass

• इति (iti) - thus, so, in this manner

• अनिसम् (anisam) - constantly, unceasingly, always

• शनैः (śanaiḥ) - slowly, gradually, gently

• विचारय (vicāraya) - investigate, consider, deliberate

• अध्यात्मदृशा (adhyātmadṛśā) - by spiritual insight, by the eye of the self

• स्वयम् (svayam) - by oneself, personally, automatically

• वा (vā) - or, optionally

• सज्जनैः (sajjanaiḥ) - by/with good people, virtuous persons

• सह (saha) - with, together with

Words meanings and morphology

किम् (kim) - what? why?

(pronoun)

Nominative, neuter, singular of kim

kim - what, which, why, who

इदम् (idam) - this, this here

(pronoun)

Nominative, neuter, singular of idam

idam - this, this here, the present

स्यात् (syāt) - may be, might be, should be, would be

(verb)

3rd person , singular, active, optative (vidhi liṅ) of as

Root: as (class 2)

जगत् (jagat) - world, universe, moving

(noun)

Nominative, neuter, singular of jagat

jagat - world, universe, moving, living beings

Present active participle of √gam

Root: gam (class 1)

किम् (kim) - what? why?

(pronoun)

Nominative, neuter, singular of kim

kim - what, which, why, who

स्यात् (syāt) - may be, might be, should be, would be

(verb)

3rd person , singular, active, optative (vidhi liṅ) of as

Root: as (class 2)

देहम् (deham) - body, form, mass

(noun)

Nominative, masculine, singular of deha

deha - body, form, mass, individual

Note: Used as neuter in some contexts, here likely nominative singular

इति (iti) - thus, so, in this manner

(indeclinable)

अनिसम् (anisam) - constantly, unceasingly, always

(indeclinable)

शनैः (śanaiḥ) - slowly, gradually, gently

(indeclinable)

विचारय (vicāraya) - investigate, consider, deliberate

(verb)

2nd person , singular, active, imperative (loṭ) of vicāray

Causative of √car

Derived from √car 'to move' with prefixes vi and ā, in the causative stem

Prefixes: vi+ā

Root: car (class 1)

अध्यात्मदृशा (adhyātmadṛśā) - by spiritual insight, by the eye of the self

(noun)

Instrumental, feminine, singular of adhyātmadṛś

adhyātmadṛś - spiritual insight, the eye of the self/spirit

Compound type : tatpuruṣa (adhyātma+dṛś)

• adhyātma – relating to the self or spirit, spiritual
  noun (neuter)
  Prefix: adhi
• dṛś – seeing, vision, eye, appearance
  noun (feminine)
  Derived from √dṛś 'to see'
  Root: dṛś (class 1)

स्वयम् (svayam) - by oneself, personally, automatically

(indeclinable)

वा (vā) - or, optionally

(indeclinable)

सज्जनैः (sajjanaiḥ) - by/with good people, virtuous persons

(noun)

Instrumental, masculine, plural of sajjana

sajjana - good person, virtuous person

Compound type : karmadhāraya (sat+jana)

• sat – good, virtuous, existing, true
  adjective (neuter)
  Present participle of √as 'to be'
  Root: as (class 2)
• jana – person, man, creature, folk
  noun (masculine)
  Root: jan (class 4)

सह (saha) - with, together with

(indeclinable)