योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-91, verse-30

भावितस्तीव्रसंवेगादात्मना यत्तदेव सः ।
भवत्याशु महाबाहो विगतेतरसंस्मृतिः ॥ ३० ॥

bhāvitastīvrasaṃvegādātmanā yattadeva saḥ ,
bhavatyāśu mahābāho vigatetarasaṃsmṛtiḥ 30

30. bhāvitaḥ tīvrasaṃvegāt ātmanā yat tat eva saḥ
bhavati āśu mahābāho vigataitarasaṃsmr̥tiḥ

30. mahābāho ātmanā tīvrasaṃvegāt yat bhāvitaḥ
saḥ eva tat vigataitarasaṃsmr̥tiḥ āśu bhavati

30. O mighty-armed one, whatever is deeply contemplated by the self (ātman) with intense impetus, he quickly becomes that very thing, having lost all other memories.

Words meanings summery:

• भावितः (bhāvitaḥ) - deeply conceived or contemplated (conceived, contemplated, impressed upon)

• तीव्रसंवेगात् (tīvrasaṁvegāt) - with intense feeling or impetus (from intense impulse, due to strong emotion)

• आत्मना (ātmanā) - by the individual self (ātman) (by the self, by the soul)

• यत् (yat) - whatever (thing or object) (which, whatever)

• तत् (tat) - that (very thing) (that, it)

• एव (eva) - indeed, very (for emphasis) (only, indeed, just)

• सः (saḥ) - he (the person contemplating) (he, that (masculine))

• भवति (bhavati) - quickly becomes (becomes, is)

• आशु (āśu) - quickly (quickly, swiftly)

• महाबाहो (mahābāho) - O mighty-armed one (an epithet, likely for Arjuna) (O mighty-armed one)

• विगतैतरसंस्म्र्̥तिः (vigataitarasaṁsmr̥tiḥ) - having lost all other memories (one for whom other memories have departed, devoid of other recollections)

Words meanings and morphology

भावितः (bhāvitaḥ) - deeply conceived or contemplated (conceived, contemplated, impressed upon)

(adjective)

Nominative, masculine, singular of bhāvita

bhāvita - caused to be, formed, contemplated, felt, conceived

Past Passive Participle

From root √bhū (to be) with causative suffix -niC, then -kta suffix.

Root: bhū (class 1)

Note: Agrees with the implicit subject (he/person).

तीव्रसंवेगात् (tīvrasaṁvegāt) - with intense feeling or impetus (from intense impulse, due to strong emotion)

(noun)

Ablative, masculine, singular of tīvrasaṃvega

tīvrasaṁvega - intense impulse, strong emotion, powerful impetus

Compound type : karmadhāraya (tīvra+saṃvega)

• tīvra – sharp, intense, strong, keen
  adjective
• saṃvega – violent motion, agitation, impulse, strong emotion, spiritual fervor
  noun (masculine)
  From prefix sam- + root √vij (to tremble, move).
  Prefix: sam
  Root: vij (class 6)

Note: Indicates the cause or manner.

आत्मना (ātmanā) - by the individual self (ātman) (by the self, by the soul)

(noun)

Instrumental, masculine, singular of ātman

ātman - self, soul, spirit, essential nature

Note: Indicates the agent.

यत् (yat) - whatever (thing or object) (which, whatever)

(pronoun)

Nominative, neuter, singular of yad

yad - which, what, that

Note: Relative pronoun.

तत् (tat) - that (very thing) (that, it)

(pronoun)

Nominative, neuter, singular of tad

tad - that, he, she, it

Note: Demonstrative pronoun.

एव (eva) - indeed, very (for emphasis) (only, indeed, just)

(indeclinable)

Note: Emphatic particle.

सः (saḥ) - he (the person contemplating) (he, that (masculine))

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

Note: Demonstrative pronoun.

भवति (bhavati) - quickly becomes (becomes, is)

(verb)

3rd person , singular, active, present (lat) of √bhū

Present Active Indicative

3rd person singular, parasmaipada.

Root: bhū (class 1)

आशु (āśu) - quickly (quickly, swiftly)

(indeclinable)

Used as an adverb here.

महाबाहो (mahābāho) - O mighty-armed one (an epithet, likely for Arjuna) (O mighty-armed one)

(noun)

Vocative, masculine, singular of mahābāhu

mahābāhu - mighty-armed, strong-armed

Compound type : bahuvrīhi (mahā+bāhu)

• mahat – great, large, mighty
  adjective
  Stem `mahā` used in compounds.
• bāhu – arm, fore-arm
  noun (masculine)

विगतैतरसंस्म्र्̥तिः (vigataitarasaṁsmr̥tiḥ) - having lost all other memories (one for whom other memories have departed, devoid of other recollections)

(adjective)

Nominative, masculine, singular of vigataitarasaṃsmr̥ti

vigataitarasaṁsmr̥ti - having lost all other memories, devoid of other recollections

Compound type : bahuvrīhi (vigata+itara+saṃsmr̥ti)

• vigata – gone, departed, passed away, lost
  adjective
  Past Passive Participle
  From prefix vi- + root √gam (to go) + kta suffix.
  Prefix: vi
  Root: gam (class 1)
• itara – other, different, another
  pronoun/adjective
• saṃsmr̥ti – recollection, memory
  noun (feminine)
  From prefix sam- + root √smṛ (to remember) + -ti suffix.
  Prefix: sam
  Root: smṛ (class 1)

Note: It is an adjective describing the person ('saḥ').