महाभारतः mahābhārataḥ - book-14, chapter-35, verse-36

अतस्तत्त्वानि वक्ष्यामि याथातथ्येन हेतुना ।
विषयस्थानि सर्वाणि वर्तमानानि भागशः ॥३६॥

36. atastattvāni vakṣyāmi yāthātathyena hetunā ,
viṣayasthāni sarvāṇi vartamānāni bhāgaśaḥ.

36. ataḥ tattvāni vakṣyāmi yāthātathyena hetunā
viṣayasthāni sarvāṇi vartamānāni bhāgaśaḥ

36. ataḥ yāthātathyena hetunā viṣayasthāni
sarvāṇi vartamānāni tattvāni bhāgaśaḥ vakṣyāmi

36. Therefore, I will truly explain all these realities (tattva), with proper reasoning, presenting them in detail, as they exist (vartamāna) in their respective domains (viṣaya), section by section.

Words meanings summery:

• अतः (ataḥ) - therefore, hence, from this

• तत्त्वानि (tattvāni) - the fundamental realities (tattva) or categories of existence (principles, realities, fundamental truths, categories)

• वक्ष्यामि (vakṣyāmi) - I (the speaker) will explain or declare (I will speak, I will declare, I will explain)

• याथातथ्येन (yāthātathyena) - truly, accurately, according to reality

• हेतुना (hetunā) - with proper reasoning or explanation (by reason, by cause, with reasoning)

• विषयस्थानि (viṣayasthāni) - existing within their specific categories or domains (viṣaya) (existing in their proper place, pertaining to objects of senses, situated in the domain of)

• सर्वाणि (sarvāṇi) - all of them (all, whole, every)

• वर्तमानानि (vartamānāni) - as they currently exist (existing, present, current)

• भागशः (bhāgaśaḥ) - in parts, section by section, severally

Words meanings and morphology

अतः (ataḥ) - therefore, hence, from this

(indeclinable)

Note: Connects to previous verses as a logical continuation.

तत्त्वानि (tattvāni) - the fundamental realities (tattva) or categories of existence (principles, realities, fundamental truths, categories)

(noun)

Accusative, neuter, plural of tattva

tattva - thatness, reality, principle, truth, essence, element, category

Note: Object of 'vakṣyāmi'.

वक्ष्यामि (vakṣyāmi) - I (the speaker) will explain or declare (I will speak, I will declare, I will explain)

(verb)

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

Future tense, from root vac, which becomes vakṣ- in future stem.

Root: vac (class 2)

याथातथ्येन (yāthātathyena) - truly, accurately, according to reality

(noun)

Instrumental, neuter, singular of yāthātathya

yāthātathya - truth, reality, accuracy, correct state of things

From yāthātathya (neuter noun) + instrumental suffix

Note: Modifies 'vakṣyāmi'.

हेतुना (hetunā) - with proper reasoning or explanation (by reason, by cause, with reasoning)

(noun)

Instrumental, masculine, singular of hetu

hetu - cause, reason, motive, means

Root: hi (class 5)

Note: Modifies 'vakṣyāmi'.

विषयस्थानि (viṣayasthāni) - existing within their specific categories or domains (viṣaya) (existing in their proper place, pertaining to objects of senses, situated in the domain of)

(adjective)

Accusative, neuter, plural of viṣayastha

viṣayastha - situated in a domain/sphere, pertaining to an object of sense, existing in its proper place

Compound type : saptamī-tatpuruṣa (viṣaya+stha)

• viṣaya – object of sense, sphere, domain, subject, matter
  noun (masculine)
• stha – standing, staying, situated in
  adjective (masculine)
  From root sthā (to stand) + a (kṛt suffix)
  Root: sthā (class 1)

Note: Modifies 'tattvāni'.

सर्वाणि (sarvāṇi) - all of them (all, whole, every)

(pronoun)

Accusative, neuter, plural of sarva

sarva - all, whole, every

Note: Modifies 'tattvāni'.

वर्तमानानि (vartamānāni) - as they currently exist (existing, present, current)

(adjective)

Accusative, neuter, plural of vartamāna

vartamāna - being, existing, present, current, living

Present Middle Participle

From root vṛt (to be, to exist) + śānac

Root: vṛt (class 1)

Note: Modifies 'tattvāni'.

भागशः (bhāgaśaḥ) - in parts, section by section, severally

(indeclinable)

Suffix -śaḥ added to bhāga (part)

Note: Adverb modifying 'vakṣyāmi'.