योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-28, verse-45

संसारसरणिस्थित्यां कस्मात्कोऽत्र विभेति किम् ।
स एव किंचित्संशोध्यः शुद्ध्या विमलतां गते ॥ ४५ ॥

saṃsārasaraṇisthityāṃ kasmātko'tra vibheti kim ,
sa eva kiṃcitsaṃśodhyaḥ śuddhyā vimalatāṃ gate 45

45. saṃsārasaraṇisthityām kasmāt kaḥ atra vibheti kim |
saḥ eva kiṃcit saṃśodhyaḥ śuddhyā vimalatām gate ||

45. saṃsārasaraṇisthityām kasmāt kaḥ atra kim vibheti
saḥ eva kiṃcit saṃśodhyaḥ śuddhyā vimalatām gate

45. Why should anyone here fear anything while on the path of transmigratory existence (saṃsāra)? That very (path) only requires a slight refinement; once purified, it attains complete stainlessness.

Words meanings summery:

• संसारसरणिस्थित्याम् (saṁsārasaraṇisthityām) - in the state of the path of transmigratory existence; in the condition of the road of transmigration

• कस्मात् (kasmāt) - from what; why

• कः (kaḥ) - who, what

• अत्र (atra) - here, in this place

• विभेति (vibheti) - fears, is afraid

• किम् (kim) - what, anything

• सः (saḥ) - that, he, it

• एव (eva) - only, indeed, just

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

• संशोध्यः (saṁśodhyaḥ) - to be purified, to be refined, to be corrected

• शुद्ध्या (śuddhyā) - by purification, through purity

• विमलताम् (vimalatām) - stainlessness, purity, immaculateness

• गते (gate) - when stainlessness has been attained (having gone, having attained, having reached)

Words meanings and morphology

संसारसरणिस्थित्याम् (saṁsārasaraṇisthityām) - in the state of the path of transmigratory existence; in the condition of the road of transmigration

(noun)

Locative, feminine, singular of saṃsārasaraṇisthiti

saṁsārasaraṇisthiti - the state of being on the path of transmigratory existence; the condition of the road of transmigration

Compound type : tatpurusha (saṃsāra+saraṇi+sthiti)

• saṃsāra – transmigratory existence, cycle of birth and death
  noun (masculine)
  Prefix: sam
  Root: sṛ (class 1)
• saraṇi – path, road, course
  noun (feminine)
  action noun
  Derived from root sṛ
  Root: sṛ (class 1)
• sthiti – state, condition, standing, existence
  noun (feminine)
  action noun
  Derived from root sthā
  Root: sthā (class 1)

कस्मात् (kasmāt) - from what; why

(pronoun)

Ablative, singular of kim

kim - what, who, which

Note: Masculine/neuter ablative singular of kim.

कः (kaḥ) - who, what

(pronoun)

Nominative, masculine, singular of kim

kim - what, who, which

Note: Masculine nominative singular of kim.

अत्र (atra) - here, in this place

(indeclinable)

विभेति (vibheti) - fears, is afraid

(verb)

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

Prefix: vi

Root: bhī (class 3)

किम् (kim) - what, anything

(pronoun)

neuter, singular of kim

kim - what, who, which

Note: Neuter nominative/accusative singular of kim.

सः (saḥ) - that, he, it

(pronoun)

Nominative, masculine, singular of tad

tad - that, this, he, she, it

Note: Masculine nominative singular of tad.

एव (eva) - only, indeed, just

(indeclinable)

किंचित् (kiṁcit) - a little, somewhat, anything

(indeclinable)

संशोध्यः (saṁśodhyaḥ) - to be purified, to be refined, to be corrected

(adjective)

Nominative, masculine, singular of saṃśodhya

saṁśodhya - to be purified, to be refined, to be corrected

Gerundive

Derived from root śudh with prefix sam, suffix -ya

Prefix: sam

Root: śudh (class 4)

Note: Gerundive form, expressing obligation or possibility. Agrees with saḥ (referring to saṃsāra-saraṇi-sthiti).

शुद्ध्या (śuddhyā) - by purification, through purity

(noun)

Instrumental, feminine, singular of śuddhi

śuddhi - purity, purification, cleansing

Root: śudh (class 4)

विमलताम् (vimalatām) - stainlessness, purity, immaculateness

(noun)

Accusative, feminine, singular of vimalatā

vimalatā - stainlessness, purity, immaculateness

Derived from vimala (stainless) + tā (abstract suffix)

गते (gate) - when stainlessness has been attained (having gone, having attained, having reached)

(adjective)

Locative, masculine, singular of gata

gata - gone, attained, arrived, reached

Past Passive Participle

Derived from root gam, suffix -ta

Root: gam (class 1)

Note: Locative singular, masculine or neuter. Often used in locative absolute constructions. Here, likely referring to the implicit subject of saṃśodhyaḥ (saḥ), indicating 'when that [path] has attained stainlessness'.