योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-91, verse-72

यथा नौस्थाचलस्पन्दः संवेद्यं संविदस्तथा ।
एतन्मिथ्या हि दुर्ज्ञानं सम्यग्ज्ञानाद्विलीयते ॥ ७२ ॥

yathā nausthācalaspandaḥ saṃvedyaṃ saṃvidastathā ,
etanmithyā hi durjñānaṃ samyagjñānādvilīyate 72

72. yathā nau-sthā-acala-spandaḥ saṃvedyam saṃvidaḥ
tathā etat mithyā hi durjñānam samyak-jñānāt vilīyate

72. yathā nau-sthā-acala-spandaḥ saṃvedyam,
tathā saṃvidaḥ etat hi mithyā durjñānam,
(etat) samyak-jñānāt vilīyate

72. Just as the perceived movement of a stationary object (acala-spanda) by one who is in a boat (nau-sthā) is knowable, so too is everything knowable perceived in consciousness (saṃvit). This (illusory perception) is indeed false and a misconception (durjñāna), yet it dissolves through right knowledge (samyag-jñāna).

Words meanings summery:

• यथा (yathā) - just as, as

• नौ-स्था-अचल-स्पन्दः (nau-sthā-acala-spandaḥ) - the perceived motion of a fixed object by one in a boat

• संवेद्यम् (saṁvedyam) - that which is to be known, perceivable, knowable

• संविदः (saṁvidaḥ) - of consciousness, of knowledge

• तथा (tathā) - so too, similarly

• एतत् (etat) - this illusory perception (this)

• मिथ्या (mithyā) - falsely, incorrectly, untrue, illusory

• हि (hi) - indeed, surely, for

• दुर्ज्ञानम् (durjñānam) - difficult to know, misconception, false knowledge

• सम्यक्-ज्ञानात् (samyak-jñānāt) - from right knowledge, due to correct understanding

• विलीयते (vilīyate) - dissolves, melts away, disappears

Words meanings and morphology

यथा (yathā) - just as, as

(indeclinable)

नौ-स्था-अचल-स्पन्दः (nau-sthā-acala-spandaḥ) - the perceived motion of a fixed object by one in a boat

(noun)

Nominative, masculine, singular of nau-sthā-acala-spanda

nau-sthā-acala-spanda - the apparent motion of an immovable object to one standing in a boat

Compound type : tatpuruṣa (nau-sthā+acala+spanda)

• nau – boat, ship
  noun (feminine)
• sthā – standing, situated
  adjective (feminine)
  from root sthā (to stand)
  Root: sthā (class 1)
• acala – immovable, stationary, mountain
  adjective (masculine)
  negation a- + cala (moving)
  Root: cal (class 1)
• spanda – vibration, movement, throb
  noun (masculine)
  from root spand (to throb)
  Root: spand (class 1)

Note: A descriptive compound acting as the subject.

संवेद्यम् (saṁvedyam) - that which is to be known, perceivable, knowable

(adjective)

Nominative, neuter, singular of saṃvedya

saṁvedya - knowable, perceivable, to be known or felt

Gerundive

from root vid (to know) with sam prefix, suffix yat

Prefix: sam

Root: vid (class 2)

संविदः (saṁvidaḥ) - of consciousness, of knowledge

(noun)

Genitive, feminine, singular of saṃvit

saṁvit - consciousness, knowledge, understanding

from root vid (to know) with sam prefix

Prefix: sam

Root: vid (class 2)

तथा (tathā) - so too, similarly

(indeclinable)

एतत् (etat) - this illusory perception (this)

(pronoun)

Nominative, neuter, singular of etad

etad - this, this one

Note: Refers to the preceding illusory perception.

मिथ्या (mithyā) - falsely, incorrectly, untrue, illusory

(indeclinable)

Note: Functions adverbially, or as a predicate adjective 'is false'.

हि (hi) - indeed, surely, for

(indeclinable)

दुर्ज्ञानम् (durjñānam) - difficult to know, misconception, false knowledge

(noun)

Nominative, neuter, singular of durjñāna

durjñāna - difficult to know, imperfect knowledge, misconception, error

from dur (bad, difficult) + jñāna (knowledge)

Compound type : tatpuruṣa (dur+jñāna)

• dur – bad, difficult, ill-
  indeclinable
  prefix
• jñāna – knowledge, understanding
  noun (neuter)
  Root: jñā (class 9)

Note: Functions as a predicate noun.

सम्यक्-ज्ञानात् (samyak-jñānāt) - from right knowledge, due to correct understanding

(noun)

Ablative, neuter, singular of samyak-jñāna

samyak-jñāna - right knowledge, correct understanding

from samyak (right, proper) + jñāna (knowledge)

Compound type : tatpuruṣa (samyak+jñāna)

• samyak – right, correct, proper, thoroughly
  indeclinable
  from sam-añc
  Prefix: sam
  Root: añc (class 5)
• jñāna – knowledge, understanding
  noun (neuter)
  Root: jñā (class 9)

Note: `t` becomes `d` in sandhi before a soft consonant.

विलीयते (vilīyate) - dissolves, melts away, disappears

(verb)

3rd person , singular, middle, present (laṭ) of lī

Present tense, middle voice

Present passive/middle (4th class, li-ya-te). Root lī (4th class), ya suffix.

Prefix: vi

Root: lī (class 4)