योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-13, verse-7

अक्षीयमाणं हि मनो मोहायैव न सिद्धये ।
नीहार इव संछाद्य वेताल इव वल्गति ॥ ७ ॥

akṣīyamāṇaṃ hi mano mohāyaiva na siddhaye ,
nīhāra iva saṃchādya vetāla iva valgati 7

7. akṣīyamāṇam hi manaḥ mohāya eva na siddhaye
nīhāraḥ iva saṃchādya vetālaḥ iva valgati

7. Indeed, the mind, if it does not diminish, leads only to delusion, not to spiritual accomplishment. Like mist, it completely covers [the truth], and like a vetāla (vampire-like demon), it roams restlessly.

Words meanings summery:

• अक्षीयमाणम् (akṣīyamāṇam) - undiminishing, not decaying, not wasting away

• हि (hi) - indeed, for, because

• मनः (manaḥ) - mind, intellect, heart

• मोहाय (mohāya) - for delusion, for infatuation

• एव (eva) - only, just, indeed

• न (na) - not, no

• सिद्धये (siddhaye) - for spiritual accomplishment (for accomplishment, for success, for perfection)

• नीहारः (nīhāraḥ) - mist, fog

• इव (iva) - like, as, as if

• संछाद्य (saṁchādya) - having completely covered, having obscured

• वेतालः (vetālaḥ) - vampire-like demon, ghost

• इव (iva) - like, as, as if

• वल्गति (valgati) - leaps, jumps, roams, moves about restlessly

Words meanings and morphology

अक्षीयमाणम् (akṣīyamāṇam) - undiminishing, not decaying, not wasting away

(adjective)

Nominative, neuter, singular of akṣīyamāṇa

akṣīyamāṇa - undiminishing, imperishable, not decaying

Present Middle Participle

derived from root kṣi (to decay, waste) with negative prefix a

Compound type : nañ-tatpuruṣa (a+kṣīyamāṇa)

• a – not, un-
  indeclinable
• kṣīyamāṇa – decaying, diminishing, wasting away
  adjective (neuter)
  Present Middle Participle
  derived from root kṣi
  Root: kṣi (class 1)

Note: Qualifies manaḥ

हि (hi) - indeed, for, because

(indeclinable)

मनः (manaḥ) - mind, intellect, heart

(noun)

Nominative, neuter, singular of manas

manas - mind, intellect, spirit, heart

Root: man (class 4)

Note: Subject of the sentence

मोहाय (mohāya) - for delusion, for infatuation

(noun)

Dative, masculine, singular of moha

moha - delusion, infatuation, bewilderment

derived from root muh

Root: muh (class 4)

Note: Expresses purpose

एव (eva) - only, just, indeed

(indeclinable)

Note: Emphatic particle

न (na) - not, no

(indeclinable)

सिद्धये (siddhaye) - for spiritual accomplishment (for accomplishment, for success, for perfection)

(noun)

Dative, feminine, singular of siddhi

siddhi - accomplishment, success, perfection, supernatural power

derived from root sidh

Root: sidh (class 1)

Note: Expresses purpose

नीहारः (nīhāraḥ) - mist, fog

(noun)

Nominative, masculine, singular of nīhāra

nīhāra - mist, fog, dew, hoarfrost

derived from root hṛ with upasarga ni

Prefix: ni

Root: hṛ (class 1)

Note: Part of a simile

इव (iva) - like, as, as if

(indeclinable)

संछाद्य (saṁchādya) - having completely covered, having obscured

(indeclinable)

Absolutive (gerund)

derived from root chad (to cover) with upasarga sam and causative suffix and then ya for absolutiv

Prefix: sam

Root: chad (class 10)

Note: Connects to valgati

वेतालः (vetālaḥ) - vampire-like demon, ghost

(noun)

Nominative, masculine, singular of vetāla

vetāla - vampire, ghost, demon, corpse animated by a spirit

Note: Part of a simile

इव (iva) - like, as, as if

(indeclinable)

वल्गति (valgati) - leaps, jumps, roams, moves about restlessly

(verb)

3rd person , singular, active, present (laṭ) of valg

Root: valg (class 1)