योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-20, verse-29

भीमास्वपि महाबुद्धे दशास्वचलबुद्धयः ।
विनिर्मलोपलाकाराः संप्राप्तासु यथाक्रमम् ॥ २९ ॥

bhīmāsvapi mahābuddhe daśāsvacalabuddhayaḥ ,
vinirmalopalākārāḥ saṃprāptāsu yathākramam 29

29. bhīmāsu api mahā-buddhe daśāsu acala-buddhayaḥ
vi-nirmala-upala-ākārāḥ samprāptāsu yathā-kramam

29. mahā-buddhe api bhīmāsu daśāsu yathā-kramam
samprāptāsu acala-buddhayaḥ vi-nirmala-upala-ākārāḥ

29. O great intellect (mahābuddhe), even when dreadful circumstances arrive in due course, we [remain] with unwavering intellects (acalabuddhayaḥ), appearing like perfectly pure gems.

Words meanings summery:

• भीमासु (bhīmāsu) - in terrible, dreadful (circumstances)

• अपि (api) - even, also

• महा-बुद्धे (mahā-buddhe) - O great intellect

• दशासु (daśāsu) - in circumstances, in states

• अचल-बुद्धयः (acala-buddhayaḥ) - whose intellects are unwavering, firm-minded

• वि-निर्मल-उपल-आकाराः (vi-nirmala-upala-ākārāḥ) - having the appearance of perfectly pure gems

• सम्प्राप्तासु (samprāptāsu) - when attained, arrived, occurred

• यथा-क्रमम् (yathā-kramam) - in due order, accordingly

Words meanings and morphology

भीमासु (bhīmāsu) - in terrible, dreadful (circumstances)

(adjective)

Locative, feminine, plural of bhīmā

bhīmā - terrible, dreadful, formidable, fierce

Feminine form of 'bhīma'

Root: bhī (class 3)

Note: Agrees with 'daśāsu'

अपि (api) - even, also

(indeclinable)

महा-बुद्धे (mahā-buddhe) - O great intellect

(noun)

Vocative, feminine, singular of mahābuddhi

mahābuddhi - great intellect, great wisdom, sharp intelligence

Compound type : tatpurusha (mahā+buddhi)

• mahā – great, large, mighty
  adjective (masculine)
• buddhi – intellect, understanding, wisdom, intelligence
  noun (feminine)
  Root: budh (class 1)

दशासु (daśāsu) - in circumstances, in states

(noun)

Locative, feminine, plural of daśā

daśā - state, condition, circumstance, period of life

अचल-बुद्धयः (acala-buddhayaḥ) - whose intellects are unwavering, firm-minded

(adjective)

Nominative, masculine, plural of acalabuddhi

acalabuddhi - unwavering intellect, firm mind, steady understanding (acalabuddhayaḥ)

Compound type : bahuvrihi (acala+buddhi)

• acala – immovable, steady, firm, unmoving
  adjective (masculine)
  Compound of 'a' (not) and 'cala' (moving)
  Prefix: a
  Root: cal (class 1)
• buddhi – intellect, understanding, wisdom, intelligence
  noun (feminine)
  Root: budh (class 1)

Note: Implied subject 'vayam' from context of previous verse

वि-निर्मल-उपल-आकाराः (vi-nirmala-upala-ākārāḥ) - having the appearance of perfectly pure gems

(adjective)

Nominative, masculine, plural of vinirmalopalākāra

vinirmalopalākāra - having the appearance of perfectly pure gems

Compound type : bahuvrihi (vi+nirmala+upala+ākāra)

• vi – intensifier, apart, distinct
  indeclinable
• nirmala – pure, spotless, clear, stainless
  adjective (masculine)
  Prefix: nir
• upala – stone, gem, jewel
  noun (masculine)
• ākāra – form, appearance, shape, resemblance
  noun (masculine)
  Prefix: ā

Note: Implied subject 'vayam' from context of previous verse

सम्प्राप्तासु (samprāptāsu) - when attained, arrived, occurred

(adjective)

Locative, feminine, plural of samprāpta

samprāpta - attained, arrived, happened, occurred, come to pass

Past Passive Participle

Derived from root 'āp' with upasargas 'sam' and 'pra'

Prefixes: sam+pra

Root: āp (class 5)

Note: Agrees with 'daśāsu'

यथा-क्रमम् (yathā-kramam) - in due order, accordingly

(indeclinable)

Compound type : avyayibhāva (yathā+krama)

• yathā – as, according to, just as
  indeclinable
• krama – order, sequence, regular course
  noun (masculine)
  Root: kram (class 1)