महाभारतः mahābhārataḥ - book-12, chapter-238, verse-12

एवं पूर्वापरे रात्रे युञ्जन्नात्मानमात्मना ।
सत्त्वाहारविशुद्धात्मा पश्यत्यात्मानमात्मनि ॥१२॥

12. evaṁ pūrvāpare rātre yuñjannātmānamātmanā ,
sattvāhāraviśuddhātmā paśyatyātmānamātmani.

12. evam pūrvāpare rātre yuñjan ātmānam ātmanā
sattvāhāra-viśuddhātmā paśyati ātmānam ātmani

12. evam pūrvāpare rātre sattvāhāra-viśuddhātmā
ātmanā ātmānam yuñjan ātmani ātmānam paśyati

12. Thus, in the first and latter parts of the night, a person whose self (ātman) is purified by a sattvic diet, unifying his self (ātman) through the self (ātman), perceives the self (ātman) within the self (ātman).

Words meanings summery:

• एवम् (evam) - thus, in this manner, so

• पूर्वापरे (pūrvāpare) - in the first and latter, in the eastern and western

• रात्रे (rātre) - in the two parts of the night (first and latter) (in the night)

• युञ्जन् (yuñjan) - unifying (his self) (uniting, joining, practicing yoga)

• आत्मानम् (ātmānam) - the self, soul, spirit, essence

• आत्मना (ātmanā) - by the self, by the soul, by oneself

• सत्त्वाहार-विशुद्धात्मा (sattvāhāra-viśuddhātmā) - one whose self is purified by a sattvic diet

• पश्यति (paśyati) - sees, perceives, beholds

• आत्मानम् (ātmānam) - the self, soul, spirit, essence

• आत्मनि (ātmani) - in the self, within the soul

Words meanings and morphology

एवम् (evam) - thus, in this manner, so

(indeclinable)

पूर्वापरे (pūrvāpare) - in the first and latter, in the eastern and western

(adjective)

Locative, feminine, dual of pūrvāpara

pūrvāpara - first and last, early and late, eastern and western

Compound type : dvandva (pūrva+apara)

• pūrva – first, prior, eastern
  adjective (masculine)
• apara – other, later, western, last
  adjective (masculine)

Note: Adjective modifying 'rātre'

रात्रे (rātre) - in the two parts of the night (first and latter) (in the night)

(noun)

Locative, feminine, dual of rātri

rātri - night

युञ्जन् (yuñjan) - unifying (his self) (uniting, joining, practicing yoga)

(participle)

Nominative, masculine, singular of yuj

yuj - to join, unite, harness, apply, practice yoga

present active participle

root 'yuj' (class 7, Parasmaipada/Ātmanepada), present participle stem 'yuñjat'

Root: yuj (class 7)

Note: Implied subject: the practitioner.

आत्मानम् (ātmānam) - the self, soul, spirit, essence

(noun)

Accusative, masculine, singular of ātman

ātman - self, soul, spirit, essence, breath

Note: Object of 'yuñjan' and 'paśyati'

आत्मना (ātmanā) - by the self, by the soul, by oneself

(noun)

Instrumental, masculine, singular of ātman

ātman - self, soul, spirit, essence, breath

Note: Instrument for 'yuñjan'

सत्त्वाहार-विशुद्धात्मा (sattvāhāra-viśuddhātmā) - one whose self is purified by a sattvic diet

(adjective)

Nominative, masculine, singular of sattvāhāra-viśuddhātman

sattvāhāra-viśuddhātman - one whose self is purified by a sattvic diet

Compound type : bahuvrīhi (sattvāhāra+viśuddha+ātman)

• sattvāhāra – sattvic diet, food conducive to sattva
  noun (masculine)
• viśuddha – purified, cleansed, pure
  participle (masculine)
  past passive participle
  From root 'śudh' with prefix 'vi'
  Prefix: vi
  Root: śudh (class 4)
• ātman – self, soul, spirit, essence
  noun (masculine)

Note: Subject of the sentence.

पश्यति (paśyati) - sees, perceives, beholds

(verb)

3rd person , singular, active, present (lat) of dṛś

present indicative

Root 'dṛś' (class 1, Parasmaipada), present stem 'paśya'

Root: dṛś (class 1)

आत्मानम् (ātmānam) - the self, soul, spirit, essence

(noun)

Accusative, masculine, singular of ātman

ātman - self, soul, spirit, essence, breath

Note: Object of 'paśyati'

आत्मनि (ātmani) - in the self, within the soul

(noun)

Locative, masculine, singular of ātman

ātman - self, soul, spirit, essence, breath

Note: Location where the self is perceived.