योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-37, verse-29

तदस्य सेच्छा नेच्छा वा ब्रह्मैवात्र न संशयः ।
इच्छा न जायते ज्ञस्यावश्यमेवानु वा नवा ॥ २९ ॥

tadasya secchā necchā vā brahmaivātra na saṃśayaḥ ,
icchā na jāyate jñasyāvaśyamevānu vā navā 29

29. tat asya sa-icchā na icchā vā brahma eva atra na saṃśayaḥ
| icchā na jāyate jñasya avaśyam eva anu vā navā ||

29. asya tat sa-icchā vā na icchā [vā
asti iti cet api] atra brahma eva na
saṃśayaḥ jñasya icchā avaśyam eva
jāyate na anu vā navā [api na jāyate]

29. Therefore, whether he has desires or not, for him it is truly the ultimate reality (brahman); there is no doubt about this. For such a knower, no desire arises, neither new nor old/repeated.

Words meanings summery:

• तत् (tat) - Therefore, referring to the preceding context or implication. (therefore, that)

• अस्य (asya) - For this person (the knower), or belonging to him. (of this, of him, for him)

• स-इच्छा (sa-icchā) - Desirous, or accompanied by desire. (with desire, desirous)

• न (na) - not, no

• इच्छा (icchā) - desire, wish

• वा (vā) - or, either

• ब्रह्म (brahma) - The ultimate, transcendent reality (brahman). (Brahman, the Absolute, ultimate reality)

• एव (eva) - only, just, indeed

• अत्र (atra) - In this context or situation. (here, in this (matter))

• न (na) - not, no

• संशयः (saṁśayaḥ) - doubt, uncertainty

• इच्छा (icchā) - desire, wish

• न (na) - not, no

• जायते (jāyate) - is born, arises, comes into being

• ज्ञस्य (jñasya) - For the enlightened or wise person. (of the knower, for the knower)

• अवश्यम् (avaśyam) - certainly, necessarily, surely

• एव (eva) - only, just, indeed

• अनु (anu) - As in 'following' or 'repeatedly', referring to desires that may persist or recur. (after, along, repeatedly)

• वा (vā) - or, either

• नवा (navā) - Referring to desires that are newly formed. (new, fresh)

Words meanings and morphology

तत् (tat) - Therefore, referring to the preceding context or implication. (therefore, that)

(indeclinable)

Note: Used as an indeclinable 'therefore' or 'in that case'.

अस्य (asya) - For this person (the knower), or belonging to him. (of this, of him, for him)

(pronoun)

Genitive, masculine, singular of idam

idam - this, this one, he, she, it

स-इच्छा (sa-icchā) - Desirous, or accompanied by desire. (with desire, desirous)

(adjective)

Nominative, feminine, singular of sa-icchā

sa-icchā - with desire, desirous

Compound type : bahuvrīhi (sa+icchā)

• sa – with, together with
  indeclinable
• icchā – desire, wish, intention
  noun (feminine)
  Root: iṣ (class 4)

न (na) - not, no

(indeclinable)

इच्छा (icchā) - desire, wish

(noun)

Nominative, feminine, singular of icchā

icchā - desire, wish, intention

Root: iṣ (class 4)

वा (vā) - or, either

(indeclinable)

ब्रह्म (brahma) - The ultimate, transcendent reality (brahman). (Brahman, the Absolute, ultimate reality)

(noun)

Nominative, neuter, singular of brahman

brahman - Brahman, the Absolute, ultimate reality; prayer, sacred word, the Veda

Root: bṛh (class 1)

एव (eva) - only, just, indeed

(indeclinable)

अत्र (atra) - In this context or situation. (here, in this (matter))

(indeclinable)

न (na) - not, no

(indeclinable)

संशयः (saṁśayaḥ) - doubt, uncertainty

(noun)

Nominative, masculine, singular of saṃśaya

saṁśaya - doubt, uncertainty, hesitation

Prefix: sam

Root: śī (class 2)

इच्छा (icchā) - desire, wish

(noun)

Nominative, feminine, singular of icchā

icchā - desire, wish, intention

Root: iṣ (class 4)

न (na) - not, no

(indeclinable)

जायते (jāyate) - is born, arises, comes into being

(verb)

3rd person , singular, middle, present (lat) of jan

4th class Atmanepada verb

Root: jan (class 4)

ज्ञस्य (jñasya) - For the enlightened or wise person. (of the knower, for the knower)

(noun)

Genitive, masculine, singular of jña

jña - knower, wise, intelligent, acquainted with

Derived from root jñā (to know)

Root: jñā (class 9)

Note: Can also be dative in context of 'for the knower'.

अवश्यम् (avaśyam) - certainly, necessarily, surely

(indeclinable)

एव (eva) - only, just, indeed

(indeclinable)

अनु (anu) - As in 'following' or 'repeatedly', referring to desires that may persist or recur. (after, along, repeatedly)

(indeclinable)

Note: Often used as a prefix to verbs or nouns, but here as a separate adverb.

वा (vā) - or, either

(indeclinable)

नवा (navā) - Referring to desires that are newly formed. (new, fresh)

(adjective)

Nominative, feminine, singular of nava

nava - new, fresh, young, recent

Note: Feminine singular form, agreeing with 'icchā'.