योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-16, verse-4

अहंकारक्षये देहः किलावश्यं विनश्यति ।
मूले क्रकचसंलूने सुमहानिव पादपः ॥ ४ ॥

ahaṃkārakṣaye dehaḥ kilāvaśyaṃ vinaśyati ,
mūle krakacasaṃlūne sumahāniva pādapaḥ 4

4. ahaṅkāra-kṣaye dehaḥ kila avaśyam vinaśyati
mūle krakaca-saṃlūne su-mahān iva pādapaḥ

4. ahaṅkāra-kṣaye dehaḥ kila avaśyam vinaśyati mūle
krakaca-saṃlūne (sati) iva su-mahān pādapaḥ (vinaśyati)

4. Upon the destruction of ego (ahaṅkāra), this body (deha) indeed necessarily perishes, just as a mighty tree perishes when its root is completely severed by a saw.

Words meanings summery:

• अहङ्कार-क्षये (ahaṅkāra-kṣaye) - when the ego (ahaṅkāra) is destroyed (in the destruction of ego, upon the decay of ego)

• देहः (dehaḥ) - this physical body (body)

• किल (kila) - reinforces the certainty (indeed, surely, as is well known)

• अवश्यम् (avaśyam) - stresses the inevitability of destruction (necessarily, certainly, inevitably)

• विनश्यति (vinaśyati) - the body perishes (perishes, is destroyed, disappears)

• मूले (mūle) - at its (the tree's) root (at the root, in the origin)

• क्रकच-संलूने (krakaca-saṁlūne) - describes the condition of the root being severed (when cut completely by a saw)

• सु-महान् (su-mahān) - a mighty (tree) (very great, mighty)

• इव (iva) - indicates comparison (like, as, as if)

• पादपः (pādapaḥ) - a mighty tree (tree)

Words meanings and morphology

अहङ्कार-क्षये (ahaṅkāra-kṣaye) - when the ego (ahaṅkāra) is destroyed (in the destruction of ego, upon the decay of ego)

(noun)

Locative, masculine, singular of ahaṅkāra-kṣaya

ahaṅkāra-kṣaya - destruction/decay of ego

Compound type : tatpurusha (ahaṅkāra+kṣaya)

• ahaṅkāra – ego, self-sense, I-making
  noun (masculine)
• kṣaya – destruction, decay, loss, end
  noun (masculine)
  Derived from kṣi (to waste away)
  Root: kṣi (class 1)

Note: Indicates the condition or time when the action occurs.

देहः (dehaḥ) - this physical body (body)

(noun)

Nominative, masculine, singular of deha

deha - body, corporeal form, physical frame

Root: dih (class 1)

Note: Subject of `vinaśyati`

किल (kila) - reinforces the certainty (indeed, surely, as is well known)

(indeclinable)

अवश्यम् (avaśyam) - stresses the inevitability of destruction (necessarily, certainly, inevitably)

(indeclinable)

Adverb derived from `avaśya` (necessary, inevitable)

Note: Modifies `vinaśyati`

विनश्यति (vinaśyati) - the body perishes (perishes, is destroyed, disappears)

(verb)

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

present active

3rd singular present active of √naś with prefix `vi`

Prefix: vi

Root: naś (class 4)

Note: The prefix `vi` emphasizes destruction.

मूले (mūle) - at its (the tree's) root (at the root, in the origin)

(noun)

Locative, neuter, singular of mūla

mūla - root, basis, origin, foundation

क्रकच-संलूने (krakaca-saṁlūne) - describes the condition of the root being severed (when cut completely by a saw)

(adjective)

Locative, neuter, singular of krakaca-saṃlūna

krakaca-saṁlūna - completely cut by a saw

Past Passive Participle

Formed from `krakaca` (saw) and `saṃlūna` (PPP of `sam-lū`)

Compound type : tatpurusha (krakaca+saṃlūna)

• krakaca – saw
  noun (masculine)
• saṃlūna – completely cut, severed
  adjective (neuter)
  Past Passive Participle
  Past passive participle of root √lū (to cut) with prefix sam-
  Prefix: sam
  Root: lū (class 9)

Note: Agrees with `mūle` in locative absolute.

सु-महान् (su-mahān) - a mighty (tree) (very great, mighty)

(adjective)

Nominative, masculine, singular of su-mahat

su-mahat - very great, exceedingly large, mighty

`su` (very) + `mahat` (great)

Compound type : karmadhāraya (su+mahat)

• su – good, well, excellent, very
  indeclinable
• mahat – great, large, mighty, important
  adjective (masculine)

Note: Agrees with `pādapaḥ`

इव (iva) - indicates comparison (like, as, as if)

(indeclinable)

पादपः (pādapaḥ) - a mighty tree (tree)

(noun)

Nominative, masculine, singular of pādapa

pādapa - tree (lit. 'drinking with the feet' i.e., roots)

Note: Subject of the implied `vinaśyati`