योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-186, verse-80

निपत्त्यैवैकयाऽऽकल्पं मनोबुद्ध्यादिवर्जिताः ।
आत्मन्येवात्मनो भान्ति तथा या ब्रह्मसंविदः ॥ ८० ॥

nipattyaivaikayā''kalpaṃ manobuddhyādivarjitāḥ ,
ātmanyevātmano bhānti tathā yā brahmasaṃvidaḥ 80

80. nipatyā eva ekayā ākalpaṃ manobuddhyādivarjitāḥ
ātmani eva ātmanaḥ bhānti tathā yā brahmasaṃvidaḥ

80. yāḥ brahmasaṃvidaḥ ekayā nipatyā ākalpaṃ
manobuddhyādivarjitāḥ ātmani eva ātmanaḥ tathā bhānti

80. Those who possess the knowledge of Brahman (brahman) shine within the Self (ātman) alone, as the Self's (ātman's) own light. They are devoid of mind, intellect, and so forth, having settled into a singular state for an entire cosmic day.

Words meanings summery:

• निपत्या (nipatyā) - having fallen, having subsided, having become fixed

• एव (eva) - only, just, indeed, alone

• एकया (ekayā) - by one, by a singular (state)

• आकल्पं (ākalpaṁ) - up to a cosmic day, for a cosmic age, eternally

• मनोबुद्ध्यादिवर्जिताः (manobuddhyādivarjitāḥ) - devoid of mind, intellect, etc.

• आत्मनि (ātmani) - in the Self (ātman) (in the Self, in the soul, in the inner essence)

• एव (eva) - only, just, indeed, alone

• आत्मनः (ātmanaḥ) - of the Self (ātman) (of the Self, of the soul, of the inner essence)

• भान्ति (bhānti) - they shine, they appear

• तथा (tathā) - thus, in that manner, similarly

• या (yā) - who, which (feminine plural nominative)

• ब्रह्मसंविदः (brahmasaṁvidaḥ) - those who possess the knowledge of Brahman (brahman) (those who have knowledge of Brahman)

Words meanings and morphology

निपत्या (nipatyā) - having fallen, having subsided, having become fixed

(indeclinable)

Absolutive (gerund)

Formed from root `pat` with prefix `ni-` and suffix `-tvā` (changed to `-ya` because of prefix).

Prefix: ni

Root: pat (class 1)

एव (eva) - only, just, indeed, alone

(indeclinable)

एकया (ekayā) - by one, by a singular (state)

(adjective)

Instrumental, feminine, singular of eka

eka - one, single, unique, sole

Note: Modifies an implicit feminine noun like 'state' or 'condition'.

आकल्पं (ākalpaṁ) - up to a cosmic day, for a cosmic age, eternally

(indeclinable)

`ā` (prefix) + `kalpa` (cosmic day/age).

Prefix: ā

Root: kḷp (class 10)

Note: Functions adverbially to indicate duration.

मनोबुद्ध्यादिवर्जिताः (manobuddhyādivarjitāḥ) - devoid of mind, intellect, etc.

(adjective)

Nominative, masculine, plural of manobuddhyādivarjita

manobuddhyādivarjita - devoid of mind, intellect, and so forth

Tatpurusha compound ending in a Past Passive Participle.

Compound type : Tatpurusha (manas+buddhi+ādi+varjita)

• manas – mind, intellect
  noun (neuter)
  Root: man (class 4)
• buddhi – intellect, understanding
  noun (feminine)
  From root `budh`.
  Root: budh (class 1)
• ādi – beginning, and so on, etcetera
  indeclinable (masculine)
• varjita – devoid of, free from, abandoned
  adjective (masculine/feminine/neuter)
  Past Passive Participle
  From root `vṛj` (to avoid, abandon) with suffix `-ita`.
  Root: vṛj (class 1)

Note: Refers to `brahmasaṃvidaḥ`.

आत्मनि (ātmani) - in the Self (ātman) (in the Self, in the soul, in the inner essence)

(noun)

Locative, masculine, singular of ātman

ātman - Self, soul, essence, breath, mind

From root `an` (to breathe).

Root: an (class 2)

Note: Refers to the ultimate reality.

एव (eva) - only, just, indeed, alone

(indeclinable)

आत्मनः (ātmanaḥ) - of the Self (ātman) (of the Self, of the soul, of the inner essence)

(noun)

Genitive, masculine, singular of ātman

ātman - Self, soul, essence, breath, mind

From root `an` (to breathe).

Root: an (class 2)

Note: Possessive case, referring to the Self's own radiance.

भान्ति (bhānti) - they shine, they appear

(verb)

3rd person , plural, active, present (laṭ) of bhā

Present active indicative

3rd person plural, active voice.

Root: bhā (class 2)

Note: Subject is `brahmasaṃvidaḥ`.

तथा (tathā) - thus, in that manner, similarly

(indeclinable)

Note: Connects the shining to the condition mentioned.

या (yā) - who, which (feminine plural nominative)

(pronoun)

Nominative, feminine, plural of yad

yad - who, which, what, that (relative pronoun)

Note: Subject of the verb `bhānti`.

ब्रह्मसंविदः (brahmasaṁvidaḥ) - those who possess the knowledge of Brahman (brahman) (those who have knowledge of Brahman)

(noun)

Nominative, feminine, plural of brahmasaṃvid

brahmasaṁvid - one who has knowledge of Brahman

Bahuvrihi compound (one whose knowledge is of Brahman).

Compound type : Bahuvrihi (brahman+saṃvid)

• brahman – the Absolute, the ultimate reality, sacred word
  noun (neuter)
  Root: bṛh (class 1)
• saṃvid – knowledge, consciousness, understanding
  noun (feminine)
  From `sam-vid` (to know, perceive).
  Prefix: sam
  Root: vid (class 2)

Note: Subject of the sentence.