योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-90, verse-21

अवासनमनासक्त्या कृतानन्ता सवासना ।
आद्यन्तमध्यविषमा दुःखायैव तपःक्रिया ॥ २१ ॥

avāsanamanāsaktyā kṛtānantā savāsanā ,
ādyantamadhyaviṣamā duḥkhāyaiva tapaḥkriyā 21

21. avāsanam anāsaktyā kṛtā anantā savāsanā
ādyantamadhyaviṣamā duḥkhāya eva tapaḥkriyā

21. tapaḥkriyā anāsaktyā kṛtā avāsanam anantā
savāsanā ādyantamadhyaviṣamā duḥkhāya eva

21. The act of spiritual practice (tapas), when performed with non-attachment (anāsakti), is rendered boundless (anantā) and free from latent impressions (vāsanās) (avāsanam). Conversely, if it involves latent impressions (vāsanās) (savāsanā), this spiritual practice (tapaḥkriyā) is difficult (viṣamā) in its beginning, middle, and end, leading only to suffering (duḥkha).

Words meanings summery:

• अवासनम् (avāsanam) - without latent impressions (vāsanās), free from desires

• अनासक्त्या (anāsaktyā) - by non-attachment

• कृता (kṛtā) - made, performed, done

• अनन्ता (anantā) - endless, boundless, infinite

• सवासना (savāsanā) - with latent impressions (vāsanās), accompanied by desires

• आद्यन्तमध्यविषमा (ādyantamadhyaviṣamā) - uneven/difficult in beginning, middle, and end

• दुःखाय (duḥkhāya) - for suffering (duḥkha), to misery

• एव (eva) - indeed, only

• तपःक्रिया (tapaḥkriyā) - the act of spiritual practice (tapas), austerity

Words meanings and morphology

अवासनम् (avāsanam) - without latent impressions (vāsanās), free from desires

(adjective)

Nominative, neuter, singular of avāsana

avāsana - without latent impressions, free from desires or mental tendencies

Compound type : Bahuvrīhi (a+vāsanā)

• a – not, non-, un-
  indeclinable
• vāsanā – latent impression, mental tendency, desire, perfume
  noun (feminine)

Note: Used as a predicate adjective, describing the state of the action or its outcome, hence neuter.

अनासक्त्या (anāsaktyā) - by non-attachment

(noun)

Instrumental, feminine, singular of anāsakti

anāsakti - non-attachment, detachment

Compound type : Bahuvrīhi (an+āsakti)

• an – not, non-, un-
  indeclinable
• āsakti – attachment, devotion, intense desire
  noun (feminine)

कृता (kṛtā) - made, performed, done

(adjective)

Nominative, feminine, singular of kṛta

kṛta - done, made, performed, accomplished

Past Passive Participle

From root 'kṛ' (to do, make) with suffix 'kta'.

Root: kṛ (class 8)

Note: Agrees with implied 'tapaḥkriyā'.

अनन्ता (anantā) - endless, boundless, infinite

(adjective)

Nominative, feminine, singular of ananta

ananta - endless, infinite, boundless; the infinite, eternity

Compound type : Bahuvrīhi (an+anta)

• an – not, non-, un-
  indeclinable
• anta – end, limit, boundary
  noun (masculine)

Note: Agrees with implied 'tapaḥkriyā'.

सवासना (savāsanā) - with latent impressions (vāsanās), accompanied by desires

(adjective)

Nominative, feminine, singular of savāsanā

savāsanā - with latent impressions, having mental tendencies

Compound type : Bahuvrīhi (sa+vāsanā)

• sa – with, accompanied by
  indeclinable
• vāsanā – latent impression, mental tendency, desire, perfume
  noun (feminine)

Note: Agrees with 'tapaḥkriyā'.

आद्यन्तमध्यविषमा (ādyantamadhyaviṣamā) - uneven/difficult in beginning, middle, and end

(adjective)

Nominative, feminine, singular of ādyantamadhyaviṣama

ādyantamadhyaviṣama - difficult in the beginning, middle, and end; uneven in all parts

Compound type : Tatpuruṣa (ādi+anta+madhya+viṣama)

• ādi – beginning, first, origin
  noun (masculine)
• anta – end, limit, boundary
  noun (masculine)
• madhya – middle, center
  noun (neuter)
• viṣama – uneven, difficult, unpleasant, arduous
  adjective (masculine)

Note: Agrees with 'tapaḥkriyā'.

दुःखाय (duḥkhāya) - for suffering (duḥkha), to misery

(noun)

Dative, neuter, singular of duḥkha

duḥkha - suffering, pain, misery, sorrow

एव (eva) - indeed, only

(indeclinable)

तपःक्रिया (tapaḥkriyā) - the act of spiritual practice (tapas), austerity

(noun)

Nominative, feminine, singular of tapaḥkriyā

tapaḥkriyā - the act of spiritual practice, performance of austerity

Compound type : Tatpuruṣa (tapas+kriyā)

• tapas – spiritual practice, austerity, penance, heat
  noun (neuter)
• kriyā – act, action, performance, rite
  noun (feminine)