योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-10, verse-4

अपरिज्ञात आत्मैव भ्रमतां समुपागतः ।
ज्ञात आत्मत्वमायाति सीमान्तः सर्वसंविदाम् ॥ ४ ॥

aparijñāta ātmaiva bhramatāṃ samupāgataḥ ,
jñāta ātmatvamāyāti sīmāntaḥ sarvasaṃvidām 4

4. aparijñātaḥ ātmā eva bhramatām samupāgataḥ
jñātaḥ ātmatvam āyāti sīmāntaḥ sarvasaṃvidām

4. aparijñātaḥ ātmā eva bhramatām samupāgataḥ saḥ eva
ātmā jñātaḥ san sarvasaṃvidām sīmāntaḥ ātmatvam āyāti

4. The (ātman) self, when unrecognized, itself falls into delusion (saṃsāra). However, when it is known, it attains its true nature (ātmatva), becoming the ultimate boundary of all forms of knowledge.

Words meanings summery:

• अपरिज्ञातः (aparijñātaḥ) - unknown, unrecognized, unrealized

• आत्मा (ātmā) - self, soul, spirit (ātman)

• एव (eva) - indeed, only, certainly

• भ्रमताम् (bhramatām) - to wandering, to delusion, to confusion

• समुपागतः (samupāgataḥ) - has attained, has come to

• ज्ञातः (jñātaḥ) - known, realized

• आत्मत्वम् (ātmatvam) - self-ness, the nature of the (ātman)

• आयाति (āyāti) - it comes, it attains

• सीमान्तः (sīmāntaḥ) - boundary, limit, end

• सर्वसंविदाम् (sarvasaṁvidām) - of all cognitions, of all forms of knowledge

Words meanings and morphology

अपरिज्ञातः (aparijñātaḥ) - unknown, unrecognized, unrealized

(adjective)

Nominative, masculine, singular of aparijñāta

aparijñāta - unknown, unrecognized

Past Passive Participle

Prefixes: a+pari

Root: jñā (class 9)

आत्मा (ātmā) - self, soul, spirit (ātman)

(noun)

Nominative, masculine, singular of ātman

ātman - self, soul, spirit (ātman)

एव (eva) - indeed, only, certainly

(indeclinable)

भ्रमताम् (bhramatām) - to wandering, to delusion, to confusion

(noun)

Accusative, feminine, singular of bhramatā

bhramatā - wandering, delusion, confusion

formed from root bhram + suffix -tā

Root: bhram (class 1)

समुपागतः (samupāgataḥ) - has attained, has come to

(adjective)

Nominative, masculine, singular of samupāgata

samupāgata - attained, approached, come to

Past Passive Participle

Prefixes: sam+upa

Root: gam (class 1)

ज्ञातः (jñātaḥ) - known, realized

(adjective)

Nominative, masculine, singular of jñāta

jñāta - known, understood, realized

Past Passive Participle

Root: jñā (class 9)

आत्मत्वम् (ātmatvam) - self-ness, the nature of the (ātman)

(noun)

Accusative, neuter, singular of ātmatva

ātmatva - self-ness, individuality, essence of (ātman)

formed from ātman + suffix -tva

आयाति (āyāti) - it comes, it attains

(verb)

3rd person , singular, active, present (laṭ) of āyā

Prefix: ā

Root: yā (class 2)

सीमान्तः (sīmāntaḥ) - boundary, limit, end

(noun)

Nominative, masculine, singular of sīmānta

sīmānta - boundary, limit, end

Compound type : tatpuruṣa (sīmā+anta)

• sīmā – boundary, limit
  noun (feminine)
• anta – end, limit
  noun (masculine)

सर्वसंविदाम् (sarvasaṁvidām) - of all cognitions, of all forms of knowledge

(noun)

Genitive, feminine, plural of sarvasaṃvid

sarvasaṁvid - all cognitions, all forms of knowledge

Compound type : tatpuruṣa (sarva+saṃvid)

• sarva – all, every
  pronoun (masculine/neuter)
• saṃvid – cognition, knowledge, understanding
  noun (feminine)
  Prefix: sam
  Root: vid (class 2)