योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-69, verse-8

केवलं चिति विश्रम्य किंचिच्चेत्यावलम्बिनि ।
सर्वत्र नीरसमिव तिष्ठत्वात्मरसं मनः ॥ ८ ॥

kevalaṃ citi viśramya kiṃciccetyāvalambini ,
sarvatra nīrasamiva tiṣṭhatvātmarasaṃ manaḥ 8

8. kevalam citi viśramya kiṃcit cetyāvalambini
sarvatra nīrasam iva tiṣṭhatu ātmarasam manaḥ

8. ātmarasam manaḥ kevalam citi viśramya kiṃcit
cetyāvalambini sarvatra nīrasam iva tiṣṭhatu

8. Let the mind, whose essence is the self (ātman), rest solely in pure consciousness. Even if it still depends slightly on objects of thought, let it remain everywhere as if devoid of taste.

Words meanings summery:

• केवलम् (kevalam) - merely, solely, only, alone

• चिति (citi) - in consciousness, in knowledge, in understanding

• विश्रम्य (viśramya) - having rested, having reposed, having calmed down

• किंचित् (kiṁcit) - somewhat, a little, anything

• चेत्यावलम्बिनि (cetyāvalambini) - dependent on the knowable/perceivable, clinging to objects of thought

• सर्वत्र (sarvatra) - everywhere, in every respect

• नीरसम् (nīrasam) - tasteless, devoid of juice/essence, indifferent, detached

• इव (iva) - like, as, as if

• तिष्ठतु (tiṣṭhatu) - let it stand, let it remain, let it exist

• आत्मरसम् (ātmarasam) - having the essence/flavor of the self (ātman)

• मनः (manaḥ) - the mind, intellect, heart

Words meanings and morphology

केवलम् (kevalam) - merely, solely, only, alone

(adjective)

Accusative, neuter, singular of kevala

kevala - sole, alone, only, pure, unmixed

Note: Can function as an adverb here.

चिति (citi) - in consciousness, in knowledge, in understanding

(noun)

Locative, feminine, singular of cit

cit - consciousness, understanding, thinking, knowing

विश्रम्य (viśramya) - having rested, having reposed, having calmed down

(indeclinable)

absolutive (gerund)

Derived from root śram with upasarga vi-

Prefix: vi

Root: śram (class 4)

Note: absolutive

किंचित् (kiṁcit) - somewhat, a little, anything

(indeclinable)

चेत्यावलम्बिनि (cetyāvalambini) - dependent on the knowable/perceivable, clinging to objects of thought

(adjective)

Locative, neuter, singular of cetyāvalambin

cetyāvalambin - dependent on what is knowable, clinging to objects of thought

Compound type : tatpuruṣa (cetya+avalambin)

• cetya – what is to be known, an object of thought, knowable
  noun (neuter)
  gerundive
  root cit + ya
  Root: cit (class 1)
• avalambin – leaning upon, dependent on, supporting
  adjective (masculine)
  Prefix: ava

सर्वत्र (sarvatra) - everywhere, in every respect

(indeclinable)

From sarva + tral suffix

नीरसम् (nīrasam) - tasteless, devoid of juice/essence, indifferent, detached

(adjective)

Nominative, neuter, singular of nīrasa

nīrasa - tasteless, insipid, devoid of juice or essence, indifferent, detached

Compound type : bahuvrīhi (nis+rasa)

• nis – without, out, free from
  indeclinable
• rasa – taste, flavor, essence, juice, emotion
  noun (masculine)

Note: agreeing with manaḥ

इव (iva) - like, as, as if

(indeclinable)

तिष्ठतु (tiṣṭhatu) - let it stand, let it remain, let it exist

(verb)

3rd person , singular, active, imperative (loṭ) of sthā

Root: sthā (class 1)

आत्मरसम् (ātmarasam) - having the essence/flavor of the self (ātman)

(adjective)

Nominative, neuter, singular of ātmarasa

ātmarasa - having the essence of the self, whose joy is in the self

Compound type : bahuvrīhi (ātman+rasa)

• ātman – self, soul, spirit, essential nature
  noun (masculine)
• rasa – taste, flavor, essence, juice, emotion
  noun (masculine)

Note: agreeing with manaḥ

मनः (manaḥ) - the mind, intellect, heart

(noun)

Nominative, neuter, singular of manas

manas - mind, intellect, heart, sense