योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-21, verse-5

पूर्वापरविचारार्थतत्परेयं मतिस्तव ।
संप्राप्स्यसि पदं प्रोच्चैर्यत्प्राप्तं शंकरादिभिः ॥ ५ ॥

pūrvāparavicārārthatatpareyaṃ matistava ,
saṃprāpsyasi padaṃ proccairyatprāptaṃ śaṃkarādibhiḥ 5

5. pūrva-apara-vicāra-artha-tat-parā iyam matiḥ tava
samprāpsyasi padam proccaiḥ yat prāptam śaṅkara-ādibhiḥ

5. tava iyam matiḥ pūrva-apara-vicāra-artha-tat-parā
proccaiḥ padam samprāpsyasi yat śaṅkara-ādibhiḥ prāptam

5. This intellect of yours is entirely devoted to the inquiry into the past and future (or 'cause and effect'). You will attain the supreme state which has been achieved by Śaṅkara and others.

Words meanings summery:

• पूर्व-अपर-विचार-अर्थ-तत्-परा (pūrva-apara-vicāra-artha-tat-parā) - entirely devoted to the inquiry into the past and future (dedicated to the purpose of examining the former and latter (or past and future))

• इयम् (iyam) - this (feminine)

• मतिः (matiḥ) - intellect, mind, thought

• तव (tava) - your, of you

• सम्प्राप्स्यसि (samprāpsyasi) - you will attain, you will reach

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

• प्रोच्चैः (proccaiḥ) - supremely (highly, greatly, supremely, loudly)

• यत् (yat) - which (which, that, whatever)

• प्राप्तम् (prāptam) - attained, obtained, reached

• शङ्कर-आदिभिः (śaṅkara-ādibhiḥ) - by Śaṅkara and others

Words meanings and morphology

पूर्व-अपर-विचार-अर्थ-तत्-परा (pūrva-apara-vicāra-artha-tat-parā) - entirely devoted to the inquiry into the past and future (dedicated to the purpose of examining the former and latter (or past and future))

(adjective)

Nominative, feminine, singular of pūrva-apara-vicāra-artha-tat-para

pūrva-apara-vicāra-artha-tat-para - intent on the purpose of considering earlier and later things

Compound type : bahuvrihi (pūrva+apara+vicāra+artha+tat-para)

• pūrva – former, prior, earlier, eastern
  adjective (masculine)
• apara – latter, posterior, other, western
  adjective (masculine)
• vicāra – deliberation, investigation, examination, reflection
  noun (masculine)
  Derived from root car with prefix vi-
  Prefix: vi
  Root: car (class 1)
• artha – purpose, meaning, aim, wealth, object
  noun (masculine)
• tat-para – intent on that, devoted to that, having that as the chief aim
  adjective (masculine)

इयम् (iyam) - this (feminine)

(pronoun)

Nominative, feminine, singular of idam

idam - this

मतिः (matiḥ) - intellect, mind, thought

(noun)

Nominative, feminine, singular of mati

mati - mind, intellect, thought, understanding, opinion

Derived from root man

Root: man (class 4)

तव (tava) - your, of you

(pronoun)

Genitive, singular of yuṣmad

yuṣmad - you

सम्प्राप्स्यसि (samprāpsyasi) - you will attain, you will reach

(verb)

2nd person , singular, active, future (lṛṭ) of samprāp

Derived from root āp with prefixes sam- and pra-

Prefixes: sam+pra

Root: āp (class 5)

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

(noun)

Accusative, neuter, singular of pada

pada - step, foot, place, position, state, goal

Note: Can also be nominative singular neuter.

प्रोच्चैः (proccaiḥ) - supremely (highly, greatly, supremely, loudly)

(indeclinable)

Adverbial form (suffix -aiḥ)

यत् (yat) - which (which, that, whatever)

(pronoun)

Nominative, neuter, singular of yad

yad - which, what, whatever

Note: Can also be accusative singular neuter.

प्राप्तम् (prāptam) - attained, obtained, reached

(participle)

Nominative, neuter, singular of prāpta

prāpta - attained, obtained, reached, received

Past Passive Participle

Derived from root āp with prefix pra-

Prefix: pra

Root: āp (class 5)

शङ्कर-आदिभिः (śaṅkara-ādibhiḥ) - by Śaṅkara and others

(noun)

Instrumental, masculine, plural of śaṅkara-ādi

śaṅkara-ādi - Śaṅkara and others, beginning with Śaṅkara

Compound type : dvandva (śaṅkara+ādi)

• śaṅkara – bestowing happiness, auspicious; a name of Shiva; a proper name
  proper noun (masculine)
• ādi – beginning, origin; etcetera, and so on, others
  noun (masculine)