महाभारतः mahābhārataḥ - book-14, chapter-18, verse-29

यथात्र कश्चिन्मेधावी दृष्टात्मा पूर्वजन्मनि ।
यत्प्रवक्ष्यामि तत्सर्वं यथावदुपपद्यते ॥२९॥

29. yathātra kaścinmedhāvī dṛṣṭātmā pūrvajanmani ,
yatpravakṣyāmi tatsarvaṁ yathāvadupapadyate.

29. yathā atra kaścit medhāvī dṛṣṭātmā pūrvajanmani
yat pravakṣyāmi tat sarvam yathāvat upapadyate

29. yathā atra kaścit medhāvī dṛṣṭātmā pūrvajanmani
yat pravakṣyāmi tat sarvam yathāvat upapadyate

29. Just as a wise individual who has realized the self (ātman) in a previous life (pūrvajanman), so too, whatever I shall declare here, all of it will be truly comprehended.

Words meanings summery:

• यथा (yathā) - as, just as, according to

• अत्र (atra) - here, in this matter, in this context

• कश्चित् (kaścit) - someone, anyone, a certain

• मेधावी (medhāvī) - intelligent, wise, discerning, possessing good memory

• दृष्टात्मा (dṛṣṭātmā) - one who has realized the self (ātman) (one who has seen the self, one whose nature is perceived, enlightened)

• पूर्वजन्मनि (pūrvajanmani) - in a previous life (pūrvajanman) (in a previous birth, in a former life)

• यत् (yat) - whatever, which, that which

• प्रवक्ष्यामि (pravakṣyāmi) - I shall declare, I shall explain, I shall speak forth

• तत् (tat) - that, this

• सर्वम् (sarvam) - all, everything

• यथावत् (yathāvat) - properly, truly, exactly, as it is

• उपपद्यते (upapadyate) - it will be truly comprehended / understood (it is properly understood, it is suitable, it follows, it happens)

Words meanings and morphology

यथा (yathā) - as, just as, according to

(indeclinable)

adverb

अत्र (atra) - here, in this matter, in this context

(indeclinable)

adverb of place/time/manner

कश्चित् (kaścit) - someone, anyone, a certain

(pronoun)

Nominative, masculine, singular of kaścid

kaścid - someone, anyone, a certain (indefinite pronoun)

derived from kim + cid

मेधावी (medhāvī) - intelligent, wise, discerning, possessing good memory

(adjective)

Nominative, masculine, singular of medhāvin

medhāvin - intelligent, wise, discerning, sagacious, having a good intellect

derived from medhā (intellect) + vin (possessive suffix)

दृष्टात्मा (dṛṣṭātmā) - one who has realized the self (ātman) (one who has seen the self, one whose nature is perceived, enlightened)

(adjective)

Nominative, masculine, singular of dṛṣṭātman

dṛṣṭātman - one who has seen the self (ātman), one whose nature is perceived

Bahuvrihi compound 'dṛṣṭa' (seen) + 'ātman' (self).

Compound type : bahuvrihi (dṛṣṭa+ātman)

• dṛṣṭa – seen, perceived, understood
  adjective (masculine)
  Past Passive Participle
  (past passive participle of dṛś)
  Root: dṛś (class 1)
• ātman – self, soul, spirit, essence
  noun (masculine)
  Root: an (class 2)

Note: Qualifies 'kaścit'.

पूर्वजन्मनि (pūrvajanmani) - in a previous life (pūrvajanman) (in a previous birth, in a former life)

(noun)

Locative, neuter, singular of pūrvajanman

pūrvajanman - previous birth, former life

compound of 'pūrva' (former) and 'janman' (birth)

Compound type : karmadhāraya (pūrva+janman)

• pūrva – former, previous
  adjective
• janman – birth, origin, life
  noun (neuter)
  from jan 'to be born'
  Root: jan (class 4)

यत् (yat) - whatever, which, that which

(pronoun)

Accusative, neuter, singular of yad

yad - which, what, whatever, that which

relative pronoun

प्रवक्ष्यामि (pravakṣyāmi) - I shall declare, I shall explain, I shall speak forth

(verb)

1st person , singular, active, future (ḷṛṭ) of vac

Future

1st person singular Future (ḷṛṭ-lakāra), active voice, with prefix 'pra'

Prefix: pra

Root: vac (class 2)

तत् (tat) - that, this

(pronoun)

neuter, singular of tad

tad - that, it, he, she

demonstrative pronoun

Note: Refers to 'whatever I shall declare'.

सर्वम् (sarvam) - all, everything

(adjective)

neuter, singular of sarva

sarva - all, every, whole, entire

Note: Functions as a noun here, 'all of it'.

यथावत् (yathāvat) - properly, truly, exactly, as it is

(indeclinable)

adverb

उपपद्यते (upapadyate) - it will be truly comprehended / understood (it is properly understood, it is suitable, it follows, it happens)

(verb)

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

Present

3rd person singular Present (laṭ-lakāra), middle voice (ātmanepada), with prefix 'upa'

Prefix: upa

Root: pad (class 4)

Note: The future sense comes from the context with 'pravakṣyāmi'.