योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-172, verse-33

अज्ञस्थो निश्चयोऽस्माकं न कदाचन गोचरः ।
यच्च यद्विषये नास्ति तन्नैवानुभवत्यसौ ॥ ३३ ॥

ajñastho niścayo'smākaṃ na kadācana gocaraḥ ,
yacca yadviṣaye nāsti tannaivānubhavatyasau 33

33. ajñasthaḥ niścayaḥ asmākaṃ na kadācana gocaraḥ yat
ca yadviṣaye na asti tat na eva anubhavati asau

33. ajñasthaḥ niścayaḥ asmākaṃ kadācana na gocaraḥ ca
yat yadviṣaye na asti tat asau na eva anubhavati

33. The firm conviction (niścaya) held by an ignorant person is never within our perception. Moreover, whatever does not exist within its own sphere, that, indeed, no one experiences.

Words meanings summery:

• अज्ञस्थः (ajñasthaḥ) - belonging to an ignorant person, situated in ignorance

• निश्चयः (niścayaḥ) - certainty, firm conviction, resolution

• अस्माकं (asmākaṁ) - of us, our

• न (na) - not, no

• कदाचन (kadācana) - ever, at any time, never (when used with 'na')

• गोचरः (gocaraḥ) - within the range (of), perceivable, object of sense

• यत् (yat) - that which, whatever

• च (ca) - and, also

• यद्विषये (yadviṣaye) - in which object/sphere, whatever the subject/object

• न (na) - not, no

• अस्ति (asti) - is, exists

• तत् (tat) - that, it (referring to 'yat')

• न (na) - not, no

• एव (eva) - indeed, certainly, only

• अनुभवति (anubhavati) - experiences, perceives, understands

• असौ (asau) - that one, he, she (referring to the subject who experiences)

Words meanings and morphology

अज्ञस्थः (ajñasthaḥ) - belonging to an ignorant person, situated in ignorance

(adjective)

Nominative, masculine, singular of ajñastha

ajñastha - belonging to an ignorant person, situated in ignorance

Compound type : tatpuruṣa (ajña+stha)

• ajña – ignorant, foolish, an ignorant person
  adjective (masculine)
  from a (negative) + √jñā
  Prefix: a
  Root: jñā (class 9)
• stha – standing, situated, existing
  adjective (masculine)
  from √sthā + a
  Root: sthā (class 1)

निश्चयः (niścayaḥ) - certainty, firm conviction, resolution

(noun)

Nominative, masculine, singular of niścaya

niścaya - certainty, firm conviction, resolution, ascertainment

from nis + √ci + ac

Prefix: nis

Root: ci (class 5)

अस्माकं (asmākaṁ) - of us, our

(pronoun)

Genitive, plural of asmad

asmad - I, we (pronoun stem)

न (na) - not, no

(indeclinable)

कदाचन (kadācana) - ever, at any time, never (when used with 'na')

(indeclinable)

from kadā (when) + cana

गोचरः (gocaraḥ) - within the range (of), perceivable, object of sense

(noun)

Nominative, masculine, singular of gocara

gocara - range, scope, object of sense, perceivable

from go (sense) + cara (moving)

Compound type : tatpuruṣa (go+cara)

• go – sense, cow, earth, ray
  noun (masculine)
• cara – moving, going, wandering
  adjective (masculine)
  from √car + a
  Root: car (class 1)

यत् (yat) - that which, whatever

(pronoun)

Nominative, neuter, singular of yad

yad - which, what, that which

च (ca) - and, also

(indeclinable)

यद्विषये (yadviṣaye) - in which object/sphere, whatever the subject/object

(noun)

Locative, masculine, singular of yadviṣaya

yadviṣaya - that which is the object/subject, in which sphere

Compound type : bahuvrīhi or tatpuruṣa (yad+viṣaya)

• yad – which, what, that which
  pronoun (neuter)
  relative pronoun stem
• viṣaya – object, subject, sphere, realm
  noun (masculine)
  from vi + √ṣi + ac
  Prefix: vi
  Root: ṣi (class 5)

न (na) - not, no

(indeclinable)

अस्ति (asti) - is, exists

(verb)

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

present active 3rd person singular

from √as

Root: as (class 2)

तत् (tat) - that, it (referring to 'yat')

(pronoun)

Nominative, neuter, singular of tad

tad - that, it

Note: Can also be accusative here.

न (na) - not, no

(indeclinable)

एव (eva) - indeed, certainly, only

(indeclinable)

अनुभवति (anubhavati) - experiences, perceives, understands

(verb)

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

present active 3rd person singular

from anu + √bhū

Prefix: anu

Root: bhū (class 1)

असौ (asau) - that one, he, she (referring to the subject who experiences)

(pronoun)

Nominative, masculine, singular of adas

adas - that, that one

Note: Could also be feminine, but masculine is default for generic "one".