योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-43, verse-31

या निशा सर्वभूतानां तस्यां जागर्ति संयमी ।
यस्यां जाग्रति भूतानि सा निशा पश्यतो मुनेः ॥ ३१ ॥

yā niśā sarvabhūtānāṃ tasyāṃ jāgarti saṃyamī ,
yasyāṃ jāgrati bhūtāni sā niśā paśyato muneḥ 31

31. yā niśā sarvabhūtānām tasyām jāgarti saṃyamī
yasyām jāgrati bhūtāni sā niśā paśyataḥ muneḥ

31. yā sarvabhūtānām niśā,
tasyām saṃyamī jāgarti; yasyām bhūtāni jāgrati,
sā paśyataḥ muneḥ niśā.

31. That which is night for all beings, in that the self-controlled person (saṃyamī) remains awake. That in which all beings are awake, that is night for the discerning sage.

Words meanings summery:

• या (yā) - which (which (feminine))

• निशा (niśā) - night (night, darkness)

• सर्वभूतानाम् (sarvabhūtānām) - for all beings (of all beings, of all creatures)

• तस्याम् (tasyām) - in that (in that (feminine))

• जागर्ति (jāgarti) - remains awake (wakes, is awake)

• संयमी (saṁyamī) - the self-controlled person (saṃyamī) (the self-controlled one, ascetic)

• यस्याम् (yasyām) - in which (in which (feminine))

• जाग्रति (jāgrati) - are awake (they wake, they are awake)

• भूतानि (bhūtāni) - beings (beings, creatures, elements)

• सा (sā) - that (that (feminine))

• निशा (niśā) - night (night, darkness)

• पश्यतः (paśyataḥ) - of the discerning (of the seeing one, of the discerning one)

• मुनेः (muneḥ) - of the sage (of the sage, of the ascetic)

Words meanings and morphology

या (yā) - which (which (feminine))

(pronoun)

Nominative, feminine, singular of yad

yad - which, what

Feminine nominative singular.

निशा (niśā) - night (night, darkness)

(noun)

Nominative, feminine, singular of niśā

niśā - night, darkness

Root: niś

सर्वभूतानाम् (sarvabhūtānām) - for all beings (of all beings, of all creatures)

(noun)

Genitive, neuter, plural of sarvabhūta

sarvabhūta - all beings, all creatures

Compound type : karmadhāraya (sarva+bhūta)

• sarva – all, every, whole
  pronoun/adjective
• bhūta – being, creature, element, past, happened
  noun (neuter)
  Past Passive Participle
  Derived from root bhū (to be).
  Root: bhū (class 1)

तस्याम् (tasyām) - in that (in that (feminine))

(pronoun)

Locative, feminine, singular of tad

tad - that, she, it

Feminine locative singular.

जागर्ति (jāgarti) - remains awake (wakes, is awake)

(verb)

3rd person , singular, active, present (laṭ) of jāgṛ

Present active indicative

3rd person singular present active indicative.

Root: jāgṛ (class 2)

संयमी (saṁyamī) - the self-controlled person (saṃyamī) (the self-controlled one, ascetic)

(noun)

Nominative, masculine, singular of saṃyamin

saṁyamin - self-controlled, ascetic, restrained

Derived from root yam with sam prefix.

Prefix: sam

Root: yam (class 1)

यस्याम् (yasyām) - in which (in which (feminine))

(pronoun)

Locative, feminine, singular of yad

yad - which, what

Feminine locative singular.

जाग्रति (jāgrati) - are awake (they wake, they are awake)

(verb)

3rd person , plural, active, present (laṭ) of jāgṛ

Present active indicative

3rd person plural present active indicative.

Root: jāgṛ (class 2)

भूतानि (bhūtāni) - beings (beings, creatures, elements)

(noun)

Nominative, neuter, plural of bhūta

bhūta - being, creature, element, past

Past Passive Participle

Derived from root bhū (to be).

Root: bhū (class 1)

सा (sā) - that (that (feminine))

(pronoun)

Nominative, feminine, singular of tad

tad - that, she, it

Feminine nominative singular.

निशा (niśā) - night (night, darkness)

(noun)

Nominative, feminine, singular of niśā

niśā - night, darkness

Root: niś

पश्यतः (paśyataḥ) - of the discerning (of the seeing one, of the discerning one)

(adjective)

Genitive, masculine, singular of paśyat

paśyat - seeing, looking, discerning

Present Active Participle

Derived from root dṛś (to see), with paśya stem. Genitive singular masculine.

Root: dṛś (class 1)

Note: Qualifies muneḥ.

मुनेः (muneḥ) - of the sage (of the sage, of the ascetic)

(noun)

Genitive, masculine, singular of muni

muni - sage, ascetic, contemplative

Root: man (class 4)