योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-54, verse-18

संकल्पेनैव संकल्पं मनसा स्वमनो मुने ।
छित्त्वा स्वात्मनि तिष्ठ त्वं किमेतावति दुष्करम् ॥ १८ ॥

saṃkalpenaiva saṃkalpaṃ manasā svamano mune ,
chittvā svātmani tiṣṭha tvaṃ kimetāvati duṣkaram 18

18. saṅkalpena eva saṅkalpam manasā svamanas mune
chittvā svātmani tiṣṭha tvam kim etāvati duṣkaram

18. mune tvam saṅkalpena eva manasā svamanas saṅkalpam
chittvā svātmani tiṣṭha kim etāvati duṣkaram

18. O sage, with your mind, cut off the mental volitions (saṅkalpa) by means of resolve (saṅkalpa) itself, and then abide in your Self (ātman). What is so difficult in this?

Words meanings summery:

• सङ्कल्पेन (saṅkalpena) - by resolve/willpower (by resolution, by intention, by will)

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

• सङ्कल्पम् (saṅkalpam) - mental volitions/constructs (to be severed) (resolution, intention, will, mental construct)

• मनसा (manasā) - by the mind, with the mind

• स्वमनस् (svamanas) - one's own mind

• मुने (mune) - O sage, O ascetic

• छित्त्वा (chittvā) - having cut, having severed, having removed

• स्वात्मनि (svātmani) - in one's own self, in the Self

• तिष्ठ (tiṣṭha) - abide, stand, remain

• त्वम् (tvam) - you

• किम् (kim) - what, how

• एतावति (etāvati) - in this simple matter (in this much, in such a thing)

• दुष्करम् (duṣkaram) - difficult to do, arduous, impossible

Words meanings and morphology

सङ्कल्पेन (saṅkalpena) - by resolve/willpower (by resolution, by intention, by will)

(noun)

Instrumental, masculine, singular of saṅkalpa

saṅkalpa - resolution, intention, will, mental resolve, volition

From sam-kḷp (to arrange, resolve) + ghañ suffix.

Prefix: sam

Root: kḷp (class 1)

एव (eva) - indeed, only, just, exactly

(indeclinable)

Emphatic particle.

सङ्कल्पम् (saṅkalpam) - mental volitions/constructs (to be severed) (resolution, intention, will, mental construct)

(noun)

Accusative, masculine, singular of saṅkalpa

saṅkalpa - resolution, intention, will, mental resolve, volition

From sam-kḷp (to arrange, resolve) + ghañ suffix.

Prefix: sam

Root: kḷp (class 1)

Note: Object of chittvā.

मनसा (manasā) - by the mind, with the mind

(noun)

Instrumental, neuter, singular of manas

manas - mind, intellect, understanding, thought

Root: man (class 4)

स्वमनस् (svamanas) - one's own mind

(noun)

Accusative, neuter, singular of svamanas

svamanas - one's own mind

Compound of sva (own) and manas (mind).

Compound type : tatpuruṣa (sva+manas)

• sva – own, one's own
  pronoun (neuter)
• manas – mind, intellect, thought
  noun (neuter)
  Root: man (class 4)

Note: Appears as svamano due to visarga sandhi before mune. Here manas is the specific word for mind, saṅkalpa is more like mental construct or volition. svamanas saṅkalpam means 'the volition of one's own mind'.

मुने (mune) - O sage, O ascetic

(noun)

Vocative, masculine, singular of muni

muni - sage, ascetic, saint, inspired one

छित्त्वा (chittvā) - having cut, having severed, having removed

(indeclinable)

Absolutive (gerund)

From root chid + ktvā suffix.

Root: chid (class 7)

स्वात्मनि (svātmani) - in one's own self, in the Self

(noun)

Locative, masculine, singular of svātman

svātman - one's own Self (ātman)

Compound of sva (own) and ātman (Self).

Compound type : tatpuruṣa (sva+ātman)

• sva – own, one's own
  pronoun (neuter)
• ātman – Self, soul, essence, individual soul, supreme soul
  noun (masculine)
  Root: an (class 2)

तिष्ठ (tiṣṭha) - abide, stand, remain

(verb)

2nd person , singular, active, imperative (loṭ) of sthā

Imperative mood, active voice

From root sthā + hi (2nd person singular ending).

Root: sthā (class 1)

त्वम् (tvam) - you

(pronoun)

Nominative, singular of yuṣmad

yuṣmad - you

Second person pronoun.

किम् (kim) - what, how

(indeclinable)

Often used as an interrogative adverb.

एतावति (etāvati) - in this simple matter (in this much, in such a thing)

(adjective)

Locative, neuter, singular of etāvat

etāvat - so much, so many, this much, this quantity

Note: Qualifies an implied noun like kārye (task) or viṣaye (matter).

दुष्करम् (duṣkaram) - difficult to do, arduous, impossible

(adjective)

Nominative, neuter, singular of duṣkara

duṣkara - difficult to do, arduous, impossible, evil

Compound of dus (bad, difficult) and kara (doer, making).

Compound type : prādi-samāsa (dus+kara)

• dus – bad, difficult, hard, ill
  indeclinable
• kara – doing, making, causing, doer, hand
  noun (neuter)
  From root kṛ + ḍa suffix.
  Root: kṛ (class 8)

Note: Predicate adjective for kim.