योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-124, verse-5

तेन यस्य यदा यद्यत्पुरो भवति वस्त्वसौ ।
यदर्थं युज्यते तेन चिद्धनैकस्वभावतः ॥ ५ ॥

tena yasya yadā yadyatpuro bhavati vastvasau ,
yadarthaṃ yujyate tena ciddhanaikasvabhāvataḥ 5

5. tena yasya yadā yadyat puraḥ bhavati vastu asau
yadartham yujyate tena ciddhanaikasvabhāvataḥ

5. tena yasya asau yadā yadyat vastu puraḥ bhavati
tena yadartham yujyate ciddhanaikasvabhāvataḥ

5. Therefore, whatever object appears before a person (asau), that person becomes engaged with it for that particular purpose, due to the singular nature of concentrated consciousness.

Words meanings summery:

• तेन (tena) - therefore (by that, therefore, by him/it)

• यस्य (yasya) - before whom (a person) (of whom, for whom, whose)

• यदा (yadā) - when, at which time

• यद्यत् (yadyat) - whatever, whichever

• पुरः (puraḥ) - in front, before, ahead

• भवति (bhavati) - becomes, is, appears, happens

• वस्तु (vastu) - object, thing, substance, reality

• असौ (asau) - that person (that (person/thing), he/she/it)

• यदर्थम् (yadartham) - for which purpose, for what reason, to what end

• युज्यते (yujyate) - is joined, is connected, is engaged, is applied

• तेन (tena) - by that (person) (by that, by him/it)

• चिद्धनैकस्वभावतः (ciddhanaikasvabhāvataḥ) - due to the singular nature of concentrated consciousness

Words meanings and morphology

तेन (tena) - therefore (by that, therefore, by him/it)

(pronoun)

Instrumental, neuter, singular of tad

tad - that, he, she, it

Note: Used adverbially to mean 'therefore'.

यस्य (yasya) - before whom (a person) (of whom, for whom, whose)

(pronoun)

Genitive, masculine, singular of yad

yad - who, which, what

यदा (yadā) - when, at which time

(indeclinable)

यद्यत् (yadyat) - whatever, whichever

(indeclinable)

Reduplication of 'yat' (what, which) for emphasis or generality

पुरः (puraḥ) - in front, before, ahead

(indeclinable)

भवति (bhavati) - becomes, is, appears, happens

(verb)

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

Root: bhū (class 1)

वस्तु (vastu) - object, thing, substance, reality

(noun)

Nominative, neuter, singular of vastu

vastu - object, thing, substance, reality, essence

असौ (asau) - that person (that (person/thing), he/she/it)

(pronoun)

Nominative, masculine, singular of adas

adas - that, yonder, such a one

यदर्थम् (yadartham) - for which purpose, for what reason, to what end

(indeclinable)

Compound of 'yad' (which) and 'artha' (purpose)

Compound type : tatpurusha (yat+artha)

• yat – which, what
  pronoun (neuter)
• artha – purpose, meaning, object
  noun (masculine)

युज्यते (yujyate) - is joined, is connected, is engaged, is applied

(verb)

3rd person , singular, passive, present indicative (laṭ) of yuj

Passive form of root 'yuj'

Root: yuj (class 7)

तेन (tena) - by that (person) (by that, by him/it)

(pronoun)

Instrumental, masculine, singular of tad

tad - that, he, she, it

चिद्धनैकस्वभावतः (ciddhanaikasvabhāvataḥ) - due to the singular nature of concentrated consciousness

(indeclinable)

Compound noun with ablative suffix '-tas'

Compound type : tatpurusha (cit+ghana+eka+svabhāva)

• cit – consciousness, thought, intelligence
  noun (feminine)
  Root: cit (class 1)
• ghana – dense, thick, solid, concentrated
  adjective (masculine)
• eka – one, single, unique
  numeral
• svabhāva – own nature, intrinsic nature, inherent disposition
  noun (masculine)
  Compound of 'sva' (own) and 'bhāva' (state, existence)
  Root: bhū (class 1)