योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-174, verse-21

अत्यन्तासंभवं दृश्यं यद्वै निर्वाणमासितम् ।
शुद्धबोधोदयं शान्तं तद्विद्धि परमं पदम् ॥ २१ ॥

atyantāsaṃbhavaṃ dṛśyaṃ yadvai nirvāṇamāsitam ,
śuddhabodhodayaṃ śāntaṃ tadviddhi paramaṃ padam 21

21. atyanta-asaṃbhavam dṛśyam yat vai nirvāṇam āsitam
śuddha-bodha-udayam śāntam tat viddhi paramam padam

21. tat paramam padam viddhi yat atyanta-asaṃbhavam
dṛśyam vai nirvāṇam āsitam śuddha-bodha-udayam śāntam

21. Know that to be the supreme state (paramam padam) which, though utterly difficult to perceive (through ordinary means), is indeed established as liberation (nirvāṇa), peaceful, and the dawning of pure consciousness (bodha).

Words meanings summery:

• अत्यन्त-असंभवम् (atyanta-asaṁbhavam) - utterly difficult to perceive (by ordinary means) (extremely impossible, utterly unattainable, highly improbable)

• दृश्यम् (dṛśyam) - that which is to be perceived, a perceived phenomenon (referring to the ultimate state) (that which is seen, visible, perceptible, a phenomenon, appearance)

• यत् (yat) - which (referring to the supreme state) (which, what, that which)

• वै (vai) - indeed (indeed, certainly, surely, truly)

• निर्वाणम् (nirvāṇam) - liberation (nirvāṇa) (blowing out, extinction, liberation, supreme bliss, cessation of suffering (nirvāṇa))

• आसितम् (āsitam) - established, attained (sat, dwelt, resided, attained, established)

• शुद्ध-बोध-उदयम् (śuddha-bodha-udayam) - the dawning of pure consciousness (bodha) (the rising of pure knowledge, the dawning of pure consciousness)

• शान्तम् (śāntam) - peaceful, tranquil (peaceful, tranquil, calm, extinguished)

• तत् (tat) - that (referring to the state being described) (that, it)

• विद्धि (viddhi) - know, understand

• परमम् (paramam) - supreme (supreme, highest, ultimate, best)

• पदम् (padam) - state, abode (step, foot, abode, state, position, word)

Words meanings and morphology

अत्यन्त-असंभवम् (atyanta-asaṁbhavam) - utterly difficult to perceive (by ordinary means) (extremely impossible, utterly unattainable, highly improbable)

(adjective)

Nominative, neuter, singular of atyanta-asaṃbhava

atyanta-asaṁbhava - extremely impossible, utterly unattainable

Compound of 'atyanta' (extremely) and 'asaṃbhava' (impossible).

Compound type : karmadhāraya (atyanta+asaṃbhava)

• atyanta – extreme, exceeding, constant, perpetually
  adjective (masculine)
  Prefix: ati
• asaṃbhava – impossible, not happening, absence of origin
  adjective (masculine)
  Negative particle 'a' + 'saṃbhava' (possible, existing).
  Prefix: sam
  Root: bhū (class 1)

दृश्यम् (dṛśyam) - that which is to be perceived, a perceived phenomenon (referring to the ultimate state) (that which is seen, visible, perceptible, a phenomenon, appearance)

(adjective)

Nominative, neuter, singular of dṛśya

dṛśya - visible, perceptible, to be seen, a phenomenon

Gerundive (kṛtya)

From root 'dṛś' (to see) with suffix '-ya'.

Root: dṛś (class 1)

Note: Used here substantively as 'that which is perceived/seen'.

यत् (yat) - which (referring to the supreme state) (which, what, that which)

(pronoun)

Nominative, neuter, singular of yad

yad - which, what, that which

Relative pronoun stem.

Note: Refers to "paramam padam".

वै (vai) - indeed (indeed, certainly, surely, truly)

(indeclinable)

Particle.

निर्वाणम् (nirvāṇam) - liberation (nirvāṇa) (blowing out, extinction, liberation, supreme bliss, cessation of suffering (nirvāṇa))

(noun)

Nominative, neuter, singular of nirvāṇa

nirvāṇa - blowing out, extinction, liberation, supreme bliss, cessation of suffering (nirvāṇa)

From root 'vā' (to blow) with prefix 'nir' and suffix '-ana'.

Prefix: nir

Root: vā (class 2)

आसितम् (āsitam) - established, attained (sat, dwelt, resided, attained, established)

(adjective)

Nominative, neuter, singular of āsita

āsita - sat, dwelt, resided, attained, established

Past Passive Participle

From root 'ās' (to sit, dwell, be present).

Root: ās (class 2)

Note: Often used to denote a state of being or dwelling.

शुद्ध-बोध-उदयम् (śuddha-bodha-udayam) - the dawning of pure consciousness (bodha) (the rising of pure knowledge, the dawning of pure consciousness)

(noun)

Nominative, neuter, singular of śuddha-bodha-udaya

śuddha-bodha-udaya - the rising of pure knowledge, the dawning of pure consciousness

Compound of 'śuddha' (pure), 'bodha' (knowledge/consciousness), and 'udaya' (rising/dawning).

Compound type : tatpuruṣa (śuddha+bodha+udaya)

• śuddha – pure, clean, clear, stainless
  adjective (masculine)
  Past Passive Participle
  From root 'śudh' (to purify).
  Root: śudh (class 4)
• bodha – awakening, knowledge, understanding, consciousness (bodha)
  noun (masculine)
  From root 'budh' (to know, awaken).
  Root: budh (class 1)
• udaya – rising, ascending, dawning, appearance
  noun (masculine)
  From root 'i' (to go) with prefix 'ud'.
  Prefix: ud
  Root: i (class 2)

शान्तम् (śāntam) - peaceful, tranquil (peaceful, tranquil, calm, extinguished)

(adjective)

Nominative, neuter, singular of śānta

śānta - peaceful, tranquil, calm, extinguished

Past Passive Participle

From root 'śam' (to be calm, cease).

Root: śam (class 4)

तत् (tat) - that (referring to the state being described) (that, it)

(pronoun)

Accusative, neuter, singular of tad

tad - that, it

Demonstrative pronoun stem.

Note: Object of "viddhi".

विद्धि (viddhi) - know, understand

(verb)

2nd person , singular, active, imperative (loṭ) of vid

Imperative, 2nd person singular

Root 'vid' (2nd class, 'adadi').

Root: vid (class 2)

परमम् (paramam) - supreme (supreme, highest, ultimate, best)

(adjective)

Accusative, neuter, singular of parama

parama - supreme, highest, ultimate, best

Superlative form of 'para' (other, distant).

पदम् (padam) - state, abode (step, foot, abode, state, position, word)

(noun)

Accusative, neuter, singular of pada

pada - step, foot, abode, state, position, word

From root 'pad' (to go).

Root: pad (class 4)

Note: Object of "viddhi" (along with "tat paramam").