महाभारतः mahābhārataḥ - book-7, chapter-28, verse-23

चतुर्मूर्तिरहं शश्वल्लोकत्राणार्थमुद्यतः ।
आत्मानं प्रविभज्येह लोकानां हितमादधे ॥२३॥

23. caturmūrtirahaṁ śaśvallokatrāṇārthamudyataḥ ,
ātmānaṁ pravibhajyeha lokānāṁ hitamādadhe.

23. catuḥ-mūrtiḥ aham śaśvat loka-trāṇa-artham udyataḥ
ātmānam pra-vibhajya iha lokānām hitam ādadhe

23. aham catuḥ-mūrtiḥ,
śaśvat loka-trāṇa-artham udyataḥ.
iha ātmānam pra-vibhajya,
lokānām hitam ādadhe.

23. I am the four-formed one, perpetually ready for the protection of the worlds. By dividing my own self (ātman) here, I bring about the welfare of all beings.

Words meanings summery:

• चतुः-मूर्तिः (catuḥ-mūrtiḥ) - the four-formed one (four-formed, having four forms)

• अहम् (aham) - I

• शश्वत् (śaśvat) - perpetually, eternally (perpetually, constantly, always)

• लोक-त्राण-अर्थम् (loka-trāṇa-artham) - for the protection of the worlds (for the purpose of protecting the worlds)

• उद्यतः (udyataḥ) - ready (ready, prepared, engaged)

• आत्मानम् (ātmānam) - my own self (ātman) (self, soul, spirit)

• प्र-विभज्य (pra-vibhajya) - by dividing (having divided, separating)

• इह (iha) - here (here, in this world)

• लोकानाम् (lokānām) - of all beings (of the worlds, of the people, of beings)

• हितम् (hitam) - the welfare (welfare, benefit, good)

• आदधे (ādadhe) - I bring about (I take, I bestow, I do, I bring about)

Words meanings and morphology

चतुः-मूर्तिः (catuḥ-mūrtiḥ) - the four-formed one (four-formed, having four forms)

(adjective)

Nominative, masculine, singular of catuḥ-mūrti

catuḥ-mūrti - having four forms or bodies

Bahuvrīhi compound: 'catur' (four) + 'mūrti' (form)

Compound type : bahuvrīhi (catur+mūrti)

• catur – four
  numeral
• mūrti – form, body, image, manifestation
  noun (feminine)

Note: Agrees with 'aham'. Refers to Viṣṇu's four forms (Vāsudeva, Saṅkarṣaṇa, Pradyumna, Aniruddha) or similar concept.

अहम् (aham) - I

(pronoun)

Nominative, singular of asmad

asmad - I, me, my (first person pronoun)

शश्वत् (śaśvat) - perpetually, eternally (perpetually, constantly, always)

(indeclinable)

Note: Adverb modifying 'udyataḥ'.

लोक-त्राण-अर्थम् (loka-trāṇa-artham) - for the protection of the worlds (for the purpose of protecting the worlds)

(noun)

Accusative, neuter, singular of loka-trāṇa-artha

loka-trāṇa-artha - for the sake of protecting the worlds

Tatpuruṣa compound: 'loka-trāṇa' (protection of the world) + 'artha' (purpose, for the sake of). Adverbial accusative.

Compound type : tatpuruṣa (loka-trāṇa+artha)

• loka-trāṇa – protection of the world
  noun (neuter)
  Tatpuruṣa compound: 'loka' (world) + 'trāṇa' (protection).
• artha – purpose, meaning, object, sake
  noun (masculine)

Note: Functions as an adverb of purpose.

उद्यतः (udyataḥ) - ready (ready, prepared, engaged)

(adjective)

Nominative, masculine, singular of udyata

udyata - ready, prepared, engaged, exerted

Past Passive Participle

From root 'yam' (to restrain, hold) with prefix 'ud' (up, forth)

Prefix: ud

Root: yam (class 1)

Note: Agrees with 'aham'.

आत्मानम् (ātmānam) - my own self (ātman) (self, soul, spirit)

(noun)

Accusative, masculine, singular of ātman

ātman - self, soul, spirit, essence, ego

Note: Object of 'pravibhaja'.

प्र-विभज्य (pra-vibhajya) - by dividing (having divided, separating)

(indeclinable)

Absolutive/Gerund (with prefix)

From root 'bhaj' (to divide) with prefixes 'pra' and 'vi'

Prefixes: pra+vi

Root: bhaj (class 1)

Note: Indicates an action completed before the main verb.

इह (iha) - here (here, in this world)

(indeclinable)

Note: Refers to this earthly realm.

लोकानाम् (lokānām) - of all beings (of the worlds, of the people, of beings)

(noun)

Genitive, masculine, plural of loka

loka - world, realm, people, community, beings

Note: Possessive, 'of the worlds/beings'.

हितम् (hitam) - the welfare (welfare, benefit, good)

(noun)

Accusative, neuter, singular of hita

hita - welfare, benefit, good, advantageous, suitable

Past Passive Participle

From root 'dhā' (to place, do) with prefix 'hi'

Root: dhā (class 3)

Note: Object of 'ādadhe'.

आदधे (ādadhe) - I bring about (I take, I bestow, I do, I bring about)

(verb)

1st person , singular, middle, present (laṭ) of ā-dhā

Present tense, 1st person singular, Ātmanepada

From root 'dhā' (to place, do) with prefix 'ā'

Prefix: ā

Root: dhā (class 3)

Note: The meaning "bring about welfare" fits well here.