योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-39, verse-48

अयं सोहमयं नाहं विभागमिति संत्यजेत् ।
सर्वं ब्रह्मेति निश्चित्य नित्यात्मार्चाव्रतं चरेत् ॥ ४८ ॥

ayaṃ sohamayaṃ nāhaṃ vibhāgamiti saṃtyajet ,
sarvaṃ brahmeti niścitya nityātmārcāvrataṃ caret 48

48. ayam saḥ aham ayam na aham vibhāgam iti saṃtyajet
sarvam brahma iti niścitya nityātmārcāvratam caret

48. ayam saḥ aham ayam na aham iti vibhāgam saṃtyajet
sarvam brahma iti niścitya nityātmārcāvratam caret

48. One should abandon this distinction, thinking "I am He" or "I am not this." Having ascertained that all is the supreme reality (brahman), one should observe the vow of constantly worshipping the self (ātman).

Words meanings summery:

• अयम् (ayam) - this

• सः (saḥ) - he, that

• अहम् (aham) - I

• अयम् (ayam) - this

• न (na) - not, no

• अहम् (aham) - I

• विभागम् (vibhāgam) - distinction, division, separation

• इति (iti) - thus, so, thinking, saying

• संत्यजेत् (saṁtyajet) - one should abandon, one should give up

• सर्वम् (sarvam) - all, everything

• ब्रह्म (brahma) - the supreme reality, Brahman

• इति (iti) - thus, so, thinking, saying

• निश्चित्य (niścitya) - having ascertained, having determined

• नित्यात्मार्चाव्रतम् (nityātmārcāvratam) - the vow of constant worship of the self

• चरेत् (caret) - one should practice, one should observe

Words meanings and morphology

अयम् (ayam) - this

(pronoun)

Nominative, masculine, singular of idam

idam - this, this here

सः (saḥ) - he, that

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

अहम् (aham) - I

(pronoun)

Nominative, singular of asmad

asmad - I, we

अयम् (ayam) - this

(pronoun)

Nominative, masculine, singular of idam

idam - this, this here

न (na) - not, no

(indeclinable)

अहम् (aham) - I

(pronoun)

Nominative, singular of asmad

asmad - I, we

विभागम् (vibhāgam) - distinction, division, separation

(noun)

Accusative, masculine, singular of vibhāga

vibhāga - division, distinction, partition, separation

Prefix: vi

Root: bhaj (class 1)

इति (iti) - thus, so, thinking, saying

(indeclinable)

संत्यजेत् (saṁtyajet) - one should abandon, one should give up

(verb)

3rd person , singular, active, optative (vidhiliṅ) of tyaj

Prefix: sam

Root: tyaj (class 1)

सर्वम् (sarvam) - all, everything

(pronoun)

Nominative, neuter, singular of sarva

sarva - all, every, whole, entire

ब्रह्म (brahma) - the supreme reality, Brahman

(noun)

Nominative, neuter, singular of brahman

brahman - Brahman (the ultimate reality, the absolute), sacred word, prayer, knowledge

इति (iti) - thus, so, thinking, saying

(indeclinable)

निश्चित्य (niścitya) - having ascertained, having determined

(indeclinable)

absolutive

Derived from root ci (to gather, know) with upasarga niś and suffix -ya

Prefix: niś

Root: ci (class 5)

नित्यात्मार्चाव्रतम् (nityātmārcāvratam) - the vow of constant worship of the self

(noun)

Accusative, neuter, singular of nityātmārcāvrata

nityātmārcāvrata - the vow of perpetual self-worship

Compound type : ṣaṣṭhī-tatpuruṣa (nitya+ātman+arcā+vrata)

• nitya – eternal, constant, perpetual
  adjective (neuter)
• ātman – self, soul, essence, individual soul, supreme soul
  noun (masculine)
• arcā – worship, adoration, homage
  noun (feminine)
  Root: arc (class 1)
• vrata – vow, sacred observance, religious practice
  noun (neuter)

चरेत् (caret) - one should practice, one should observe

(verb)

3rd person , singular, active, optative (vidhiliṅ) of car

Root: car (class 1)