योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-43, verse-50

निरर्थिकैव विभ्रान्तिः स्वभावमयमास्यताम् ।
शुद्धबोधस्वभावस्थैराकाशमिव शारदैः ॥ ५० ॥

nirarthikaiva vibhrāntiḥ svabhāvamayamāsyatām ,
śuddhabodhasvabhāvasthairākāśamiva śāradaiḥ 50

50. nirarthikā eva vibhrāntiḥ svabhāvamayam āsyatām
śuddhabodhasvabhāvasthaiḥ ākāśam iva śāradaiḥ

50. vibhrāntiḥ eva nirarthikā śuddhabodhasvabhāvasthaiḥ
ākāśam iva śāradaiḥ svabhāvamayam āsyatām

50. This delusion is utterly meaningless. Let one settle into this intrinsic nature (svabhāva), which is like the clear autumn sky, by being established in the true nature of pure consciousness (bodha).

Words meanings summery:

• निरर्थिका (nirarthikā) - meaningless, useless, groundless

• एव (eva) - indeed, only, just

• विभ्रान्तिः (vibhrāntiḥ) - delusion, error, confusion

• स्वभावमयम् (svabhāvamayam) - consisting of intrinsic nature, full of intrinsic nature

• आस्यताम् (āsyatām) - let it be sat, let one dwell, let one settle

• शुद्धबोधस्वभावस्थैः (śuddhabodhasvabhāvasthaiḥ) - by those who are established in the intrinsic nature of pure consciousness

• आकाशम् (ākāśam) - sky, space, ether

• इव (iva) - like, as, as if

• शारदैः (śāradaiḥ) - clear (like the autumn sky) (autumnal, relating to autumn, clear (like autumn))

Words meanings and morphology

निरर्थिका (nirarthikā) - meaningless, useless, groundless

(adjective)

Nominative, feminine, singular of nirarthika

nirarthika - meaningless, useless, vain, groundless

Compound type : Prādi-Tatpuruṣa (nir+artha+ika)

• nir – without, out, free from
  indeclinable
  Prefix: nir
• artha – meaning, purpose, object
  noun (masculine)
• ika – suffix forming adjectives meaning 'belonging to' or 'relating to'
  suffix

Note: Agrees with 'vibhrāntiḥ'

एव (eva) - indeed, only, just

(indeclinable)

विभ्रान्तिः (vibhrāntiḥ) - delusion, error, confusion

(noun)

Nominative, feminine, singular of vibhrānti

vibhrānti - error, delusion, confusion, wandering, agitation

Prefix: vi

Root: bhram (class 1)

स्वभावमयम् (svabhāvamayam) - consisting of intrinsic nature, full of intrinsic nature

(adjective)

Accusative, neuter, singular of svabhāvamaya

svabhāvamaya - consisting of one's own nature, inherent

Compound type : Tatpuruṣa (svabhāva+maya)

• svabhāva – one's own nature, inherent disposition, essential property, intrinsic nature
  noun (masculine)
  Prefix: sva
  Root: bhū (class 1)
• maya – made of, consisting of, full of
  suffix
  Suffix forming adjectives from nouns

Note: Modifies an implied 'state' or 'mind'.

आस्यताम् (āsyatām) - let it be sat, let one dwell, let one settle

(verb)

3rd person , singular, passive, imperative (loṭ) of ās

3rd person singular imperative, passive voice, or middle voice imperative

Root: ās (class 2)

शुद्धबोधस्वभावस्थैः (śuddhabodhasvabhāvasthaiḥ) - by those who are established in the intrinsic nature of pure consciousness

(adjective)

Instrumental, masculine, plural of śuddhabodhasvabhāvastha

śuddhabodhasvabhāvastha - established in the nature of pure consciousness

Compound type : Tatpuruṣa (śuddha+bodha+svabhāva+stha)

• śuddha – pure, clean, clear
  adjective (masculine)
  Past Passive Participle
  From root 'śudh' (to purify)
  Root: śudh (class 4)
• bodha – perception, knowledge, understanding, awakening, consciousness
  noun (masculine)
  Root: budh (class 1)
• svabhāva – one's own nature, inherent disposition, essential property, intrinsic nature
  noun (masculine)
  Prefix: sva
  Root: bhū (class 1)
• stha – standing, staying, situated in
  adjective (masculine)
  From root 'sthā' (to stand) with suffix -a
  Root: sthā (class 1)

आकाशम् (ākāśam) - sky, space, ether

(noun)

Accusative, neuter, singular of ākāśa

ākāśa - sky, space, ether

Root: kāś (class 1)

इव (iva) - like, as, as if

(indeclinable)

शारदैः (śāradaiḥ) - clear (like the autumn sky) (autumnal, relating to autumn, clear (like autumn))

(adjective)

Instrumental, masculine, plural of śārada

śārada - autumnal, pertaining to autumn, clear, bright

Note: Agrees with 'śuddhabodhasvabhāvasthaiḥ'