योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-137, verse-56

सुषुप्तमिति निश्चित्य तुरीयान्वेषणामहम् ।
प्रवृत्तः कर्तुमुद्युक्तो युक्तः परमया धिया ॥ ५६ ॥

suṣuptamiti niścitya turīyānveṣaṇāmaham ,
pravṛttaḥ kartumudyukto yuktaḥ paramayā dhiyā 56

56. suṣuptam iti niścitya turīya-anveṣaṇām aham
pravṛttaḥ kartum udyuktaḥ yuktaḥ paramayā dhiyā

56. iti suṣuptam niścitya,
aham paramayā dhiyā yuktaḥ udyuktaḥ (san) turīya-anveṣaṇām kartum pravṛttaḥ .

56. Having thus ascertained this (dense, sleep-like state) as profound sleep (suṣupti), I then engaged myself, equipped with supreme intellect, to search for the fourth state (turīya).

Words meanings summery:

• सुषुप्तम् (suṣuptam) - profound sleep, deep sleep (suṣupti)

• इति (iti) - — as (thus, so)

• निश्चित्य (niścitya) - having ascertained, having determined

• तुरीय-अन्वेषणाम् (turīya-anveṣaṇām) - the search for the fourth state (turīya)

• अहम् (aham) - I

• प्रवृत्तः (pravṛttaḥ) - began (to search) (begun, started, engaged in)

• कर्तुम् (kartum) - to perform, to undertake (to do, to make)

• उद्युक्तः (udyuktaḥ) - engaged (in the task) (engaged, ready, prepared)

• युक्तः (yuktaḥ) - equipped, endowed (joined, endowed, connected, fit)

• परमया (paramayā) - by the highest, by the supreme

• धिया (dhiyā) - by intellect (by intellect, by understanding, by thought)

Words meanings and morphology

सुषुप्तम् (suṣuptam) - profound sleep, deep sleep (suṣupti)

(noun)

Accusative, neuter, singular of suṣupta

suṣupta - profound sleep, deep sleep, sleeping

Past Passive Participle

Derived from root svap (to sleep) with prefix su + kta, sandhi changes sv to ṣup

Prefix: su

Root: svap (class 2)

इति (iti) - — as (thus, so)

(indeclinable)

Note: Marks 'suṣuptam' as the designation.

निश्चित्य (niścitya) - having ascertained, having determined

(indeclinable)

absolutive

Derived from root ci (to gather) with prefix nis + lyap

Prefix: nis

Root: ci (class 5)

तुरीय-अन्वेषणाम् (turīya-anveṣaṇām) - the search for the fourth state (turīya)

(noun)

Accusative, feminine, singular of turīya-anveṣaṇā

turīya-anveṣaṇā - the search for the fourth state

Compound type : tatpuruṣa (turīya+anveṣaṇā)

• turīya – the fourth (state) (turīya)
  noun (neuter)
• anveṣaṇā – search, investigation, inquiry
  noun (feminine)
  Derived from root iṣ (to seek) with prefix anu + nā (feminine noun suffix)
  Prefix: anu
  Root: iṣ (class 4)

अहम् (aham) - I

(pronoun)

Nominative, singular of asmad

asmad - I, we

प्रवृत्तः (pravṛttaḥ) - began (to search) (begun, started, engaged in)

(participle)

Nominative, masculine, singular of pravṛtta

pravṛtta - begun, started, engaged in, active, existing

Past Passive Participle

Derived from root vṛt (to turn, to be) with prefix pra + kta

Prefix: pra

Root: vṛt (class 1)

Note: Used predicatively with 'aham'.

कर्तुम् (kartum) - to perform, to undertake (to do, to make)

(indeclinable)

infinitive

Derived from root kṛ (to do) + tumun

Root: kṛ (class 8)

उद्युक्तः (udyuktaḥ) - engaged (in the task) (engaged, ready, prepared)

(participle)

Nominative, masculine, singular of udyukta

udyukta - engaged, ready, prepared, undertaken

Past Passive Participle

Derived from root yuj (to join) with prefix ud + kta

Prefix: ud

Root: yuj (class 7)

Note: Used predicatively with 'aham'.

युक्तः (yuktaḥ) - equipped, endowed (joined, endowed, connected, fit)

(participle)

Nominative, masculine, singular of yukta

yukta - joined, united, connected, endowed with, fit, proper, engaged (in yoga)

Past Passive Participle

Derived from root yuj (to join) + kta

Root: yuj (class 7)

Note: Used predicatively with 'aham'.

परमया (paramayā) - by the highest, by the supreme

(adjective)

Instrumental, feminine, singular of paramā

paramā - highest, supreme, ultimate, excellent

धिया (dhiyā) - by intellect (by intellect, by understanding, by thought)

(noun)

Instrumental, feminine, singular of dhī

dhī - intellect, understanding, thought, mind, wisdom