योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-105, verse-13

सदसद्भवति क्षिप्रं भुवोऽननुभवो यथा ।
विपर्यस्यति सर्वं च रात्रिरेव यथा दिनम् ॥ १३ ॥

sadasadbhavati kṣipraṃ bhuvo'nanubhavo yathā ,
viparyasyati sarvaṃ ca rātrireva yathā dinam 13

13. sat asat bhavati kṣipram bhuvaḥ ananubhavaḥ yathā
viparyasyati sarvam ca rātriḥ eva yathā dinam

13. sat kṣipram asat bhavati yathā bhuvaḥ ananubhavaḥ
ca sarvam viparyasyati yathā rātriḥ eva dinam

13. Existence quickly becomes non-existence, just as the Earth becomes unperceived. And everything is reversed, just as night itself becomes day.

Words meanings summery:

• सत् (sat) - existence, reality, being, good, true

• असत् (asat) - non-existence, unreality, non-being, bad, false

• भवति (bhavati) - becomes, happens, exists

• क्षिप्रम् (kṣipram) - quickly, swiftly, immediately

• भुवः (bhuvaḥ) - of the earth, of the world

• अननुभवः (ananubhavaḥ) - non-perception, non-experience, lack of feeling

• यथा (yathā) - just as, as, in which way

• विपर्यस्यति (viparyasyati) - reverses, turns upside down, becomes inverted, changes

• सर्वम् (sarvam) - all, everything, whole

• च (ca) - and, also, moreover

• रात्रिः (rātriḥ) - night

• एव (eva) - just, only, indeed, certainly

• यथा (yathā) - just as, as, in which way

• दिनम् (dinam) - day

Words meanings and morphology

सत् (sat) - existence, reality, being, good, true

(noun)

Nominative, neuter, singular of sat

sat - existence, reality, being, good, true

Present Active Participle

From root 'as' (to be). Nominative singular neuter.

Root: as (class 2)

असत् (asat) - non-existence, unreality, non-being, bad, false

(noun)

Nominative, neuter, singular of asat

asat - non-existence, unreality, non-being, bad, false

Present Active Participle (negated)

Negation of 'sat'. Nominative singular neuter.

Compound type : nañ-tatpuruṣa (a+sat)

• a – not, non-
  prefix
• sat – existence, being
  noun (neuter)
  Present Active Participle
  From root 'as' (to be).
  Root: as (class 2)

भवति (bhavati) - becomes, happens, exists

(verb)

3rd person , singular, active, present indicative (laṭ) of bhū

Root: bhū (class 1)

क्षिप्रम् (kṣipram) - quickly, swiftly, immediately

(indeclinable)

भुवः (bhuvaḥ) - of the earth, of the world

(noun)

Genitive, feminine, singular of bhū

bhū - earth, ground, world

अननुभवः (ananubhavaḥ) - non-perception, non-experience, lack of feeling

(noun)

Nominative, masculine, singular of ananubhava

ananubhava - non-perception, non-experience

Compound type : nañ-tatpuruṣa (an+anubhava)

• an – not, non-
  prefix
• anubhava – perception, experience, feeling
  noun (masculine)
  Prefix: anu
  Root: bhū (class 1)

यथा (yathā) - just as, as, in which way

(indeclinable)

विपर्यस्यति (viparyasyati) - reverses, turns upside down, becomes inverted, changes

(verb)

3rd person , singular, active, present indicative (laṭ) of viparyas

Prefixes: vi+pari

Root: as (class 4)

सर्वम् (sarvam) - all, everything, whole

(pronoun)

Nominative, neuter, singular of sarva

sarva - all, every, whole

च (ca) - and, also, moreover

(indeclinable)

रात्रिः (rātriḥ) - night

(noun)

Nominative, feminine, singular of rātri

rātri - night

एव (eva) - just, only, indeed, certainly

(indeclinable)

यथा (yathā) - just as, as, in which way

(indeclinable)

दिनम् (dinam) - day

(noun)

Nominative, neuter, singular of dina

dina - day