योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-13, verse-31

स्पन्दते यत्स तद्वायुश्चेष्टा कर्मेन्द्रियव्रजम् ।
रूपालोकमनस्कारजातमित्यपि भावयत् ॥ ३१ ॥

spandate yatsa tadvāyuśceṣṭā karmendriyavrajam ,
rūpālokamanaskārajātamityapi bhāvayat 31

31. spandate yat saḥ tat vāyuḥ ceṣṭā karmendriyavrajām
rūpa āloka manaskāra jātam iti api bhāvayat

31. yat spandate,
saḥ tat vāyuḥ (asti).
ceṣṭā ca karmendriyavrajām (asti).
(saḥ) rūpa-āloka-manaskāra-jātam iti api bhāvayat.

31. That which pulsates is the life-force. Movement and effort (ceṣṭā) constitute the group of organs of action. One should also contemplate that which originates from form (rūpa), perception, and mental activity, understanding it in this way.

Words meanings summery:

• स्पन्दते (spandate) - pulsates, vibrates, moves

• यत् (yat) - which, what

• सः (saḥ) - that, he

• तत् (tat) - that, it

• वायुः (vāyuḥ) - the vital force or subtle element of air (air, wind, life-force)

• चेष्टा (ceṣṭā) - effort, movement, activity

• कर्मेन्द्रियव्रजाम् (karmendriyavrajām) - host/group of action senses

• रूप (rūpa) - form, appearance, color

• आलोक (āloka) - perception, sight, light

• मनस्कार (manaskāra) - mental activity, attention, thought

• जातम् (jātam) - born, produced, originated

• इति (iti) - thus, in this way, referring to

• अपि (api) - also, even, too

• भावयत् (bhāvayat) - one should contemplate/meditate

Words meanings and morphology

स्पन्दते (spandate) - pulsates, vibrates, moves

(verb)

3rd person , singular, middle, present (laṭ) of spand

Present Tense, Middle Voice (ātmanepada)

Root spand (D. 1)

Root: spand (class 1)

यत् (yat) - which, what

(pronoun)

Nominative, neuter, singular of yad

yad - which, what

सः (saḥ) - that, he

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

Note: Refers to 'vāyuḥ'.

तत् (tat) - that, it

(pronoun)

Nominative, neuter, singular of tad

tad - that, he, she, it

Note: Corresponds to 'yat'.

वायुः (vāyuḥ) - the vital force or subtle element of air (air, wind, life-force)

(noun)

Nominative, masculine, singular of vāyu

vāyu - air, wind, life-breath, life-force

Root: vā

Note: Often refers to prāṇa or vital force in philosophical contexts.

चेष्टा (ceṣṭā) - effort, movement, activity

(noun)

Nominative, feminine, singular of ceṣṭā

ceṣṭā - movement, activity, effort, exertion

Root: ceṣṭ

कर्मेन्द्रियव्रजाम् (karmendriyavrajām) - host/group of action senses

(noun)

Nominative, neuter, singular of karmendriyavraja

karmendriyavraja - group of organs of action

Compound of karmendriya and vraja

Compound type : tatpurusha (karmendriya+vraja)

• karmendriya – organ of action (e.g., hands, feet, speech)
  noun (neuter)
  Compound: karman + indriya
• vraja – herd, flock, group, collection
  noun (masculine)

Note: Here neuter nominative singular, serving as the predicate to feminine 'ceṣṭā'.

रूप (rūpa) - form, appearance, color

(noun)

Nominative, neuter, singular of rūpa

rūpa - form, shape, appearance, color

Note: First part of the compound rūpāloka-manaskāra-jātam.

आलोक (āloka) - perception, sight, light

(noun)

Nominative, masculine, singular of āloka

āloka - perception, sight, light, vision

Derived from root lok with upasarga ā-

Prefix: ā

Root: lok (class 10)

Note: Second part of the compound rūpāloka-manaskāra-jātam.

मनस्कार (manaskāra) - mental activity, attention, thought

(noun)

Nominative, masculine, singular of manaskāra

manaskāra - mental activity, attention, thinking

Compound: manas + kāra

Compound type : tatpurusha (manas+kāra)

• manas – mind, intellect, consciousness
  noun (neuter)
• kāra – making, acting, doing, activity
  noun (masculine)
  Derived from root kṛ
  Root: kṛ

Note: Third part of the compound rūpāloka-manaskāra-jātam.

जातम् (jātam) - born, produced, originated

(adjective)

Nominative, neuter, singular of jāta

jāta - born, produced, arisen, happened

Past Passive Participle

Derived from root jan

Root: jan (class 4)

Note: Forms the last part of the compound rūpāloka-manaskāra-jātam, and is the object of contemplation.

इति (iti) - thus, in this way, referring to

(indeclinable)

अपि (api) - also, even, too

(indeclinable)

भावयत् (bhāvayat) - one should contemplate/meditate

(participle)

Nominative, masculine, singular of bhāvayat

bhāvayat - one who contemplates/meditates/causes to exist

Present Active Participle (Causative)

From causative stem bhāvaya- of root bhū (P. 1); śatṛ-pratyaya. Used in an injunctive sense.

Root: bhū (class 1)