महाभारतः mahābhārataḥ - book-12, chapter-198, verse-8

यदा मनसि सा बुद्धिर्वर्ततेऽन्तरचारिणी ।
व्यवसायगुणोपेता तदा संपद्यते मनः ॥८॥

8. yadā manasi sā buddhirvartate'ntaracāriṇī ,
vyavasāyaguṇopetā tadā saṁpadyate manaḥ.

8. yadā manasi sā buddhiḥ vartate antaracāriṇī
vyavasāyaguṇopetā tadā saṃpadyate manaḥ

8. yadā sā buddhiḥ antaracāriṇī manasi vartate
vyavasāyaguṇopetā tadā manaḥ saṃpadyate

8. When that intellect (buddhi), dwelling within the mind, becomes endowed with the quality of resolute determination, then the mind itself attains its true nature.

Words meanings summery:

• यदा (yadā) - when, at which time

• मनसि (manasi) - in the mind, within the mind

• सा (sā) - that (feminine)

• बुद्धिः (buddhiḥ) - intellect, understanding, discernment

• वर्तते (vartate) - exists, operates, is present

• अन्तरचारिणी (antaracāriṇī) - moving within, dwelling internally

• व्यवसायगुणोपेता (vyavasāyaguṇopetā) - endowed with the quality of resolute determination

• तदा (tadā) - then, at that time

• संपद्यते (saṁpadyate) - becomes, attains, is accomplished

• मनः (manaḥ) - the mind

Words meanings and morphology

यदा (yadā) - when, at which time

(indeclinable)

मनसि (manasi) - in the mind, within the mind

(noun)

Locative, neuter, singular of manas

manas - mind, intellect, heart

Root: man

सा (sā) - that (feminine)

(pronoun)

Nominative, feminine, singular of tad

tad - that

बुद्धिः (buddhiḥ) - intellect, understanding, discernment

(noun)

Nominative, feminine, singular of buddhi

buddhi - intellect, understanding, perception, discernment

from root 'budh' (to know, perceive) + suffix 'ti'

Root: budh (class 1)

वर्तते (vartate) - exists, operates, is present

(verb)

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

present indicative

ātmanepada

Root: vṛt (class 1)

अन्तरचारिणी (antaracāriṇī) - moving within, dwelling internally

(adjective)

Nominative, feminine, singular of antaracārin

antaracārin - moving within, dwelling internally

compound of 'antara' (within) and 'cārin' (moving)

Compound type : tatpurusha (antara+cārin)

• antara – within, internal, intermediate
  indeclinable
• cārin – moving, going, practicing
  adjective (masculine)
  agent noun
  from root 'car' (to move, wander) + suffix 'ṇin'
  Root: car (class 1)

Note: agrees with buddhiḥ

व्यवसायगुणोपेता (vyavasāyaguṇopetā) - endowed with the quality of resolute determination

(adjective)

Nominative, feminine, singular of vyavasāyaguṇopeta

vyavasāyaguṇopeta - endowed with the quality of resolute determination

compound of 'vyavasāya' (resolve), 'guṇa' (quality), and 'upeta' (endowed with)

Compound type : tatpurusha (vyavasāya+guṇa+upeta)

• vyavasāya – resolute determination, resolve, effort
  noun (masculine)
  from 'vi-ava-sā' (to determine)
  Prefixes: vi+ava
  Root: sā (class 4)
• guṇa – quality, attribute, virtue
  noun (masculine)
• upeta – endowed with, possessed of, approached
  adjective (masculine)
  Past Passive Participle
  from 'upā-i' (to go to, approach)
  Prefix: upā
  Root: i (class 2)

Note: agrees with buddhiḥ

तदा (tadā) - then, at that time

(indeclinable)

संपद्यते (saṁpadyate) - becomes, attains, is accomplished

(verb)

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

present indicative

ātmanepada

Prefix: sam

Root: pad (class 4)

मनः (manaḥ) - the mind

(noun)

Nominative, neuter, singular of manas

manas - mind, intellect, heart

Root: man

Note: subject of saṃpadyate