महाभारतः mahābhārataḥ - book-12, chapter-196, verse-13

अहिरेव ह्यहेः पादान्पश्यतीति निदर्शनम् ।
तद्वन्मूर्तिषु मूर्तिष्ठं ज्ञेयं ज्ञानेन पश्यति ॥१३॥

13. ahireva hyaheḥ pādānpaśyatīti nidarśanam ,
tadvanmūrtiṣu mūrtiṣṭhaṁ jñeyaṁ jñānena paśyati.

13. ahiḥ eva hi aheḥ pādān paśyati iti nidarśanam |
tadvat mūrtiṣu mūrtiṣṭham jñeyam jñānena paśyati

13. ahiḥ eva hi aheḥ pādān paśyati iti nidarśanam tadvat
[jñānena] jñānena mūrtiṣu mūrtiṣṭham jñeyam paśyati

13. "Indeed, only a snake sees the feet (hidden aspects) of another snake"—this is an apt illustration. Similarly, through knowledge (jñāna), one perceives the knowable (jñeya) that exists within various forms (mūrti).

Words meanings summery:

• अहिः (ahiḥ) - a snake (snake, serpent)

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

• हि (hi) - indeed (indeed, surely, for)

• अहेः (aheḥ) - of another snake (of a snake)

• पादान् (pādān) - feet (metaphorically, hidden aspects) (feet, rays, roots)

• पश्यति (paśyati) - sees (sees, beholds, perceives)

• इति (iti) - this is (thus, so, in this manner)

• निदर्शनम् (nidarśanam) - an apt illustration (illustration, example, demonstration)

• तद्वत् (tadvat) - similarly (similarly, like that, accordingly)

• मूर्तिषु (mūrtiṣu) - within forms (mūrti) (in forms, in bodies, in embodiments)

• मूर्तिष्ठम् (mūrtiṣṭham) - that exists within forms (abiding in forms, standing in bodies)

• ज्ञेयम् (jñeyam) - the knowable (jñeya) (what is to be known, the knowable)

• ज्ञानेन (jñānena) - through knowledge (jñāna) (by knowledge, by understanding)

• पश्यति (paśyati) - perceives (sees, beholds, perceives)

Words meanings and morphology

अहिः (ahiḥ) - a snake (snake, serpent)

(noun)

Nominative, masculine, singular of ahi

ahi - snake, serpent, dragon

एव (eva) - only (only, just, indeed)

(indeclinable)

Note: Emphatic particle.

हि (hi) - indeed (indeed, surely, for)

(indeclinable)

Note: Reinforces `eva`.

अहेः (aheḥ) - of another snake (of a snake)

(noun)

Genitive, masculine, singular of ahi

ahi - snake, serpent, dragon

Note: Refers to another snake.

पादान् (pādān) - feet (metaphorically, hidden aspects) (feet, rays, roots)

(noun)

Accusative, masculine, plural of pāda

pāda - foot, leg, quarter, ray of light, verse-foot

पश्यति (paśyati) - sees (sees, beholds, perceives)

(verb)

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

present active

from `√dṛś` (1st class, P. `paśyati`)

Root: dṛś (class 1)

इति (iti) - this is (thus, so, in this manner)

(indeclinable)

निदर्शनम् (nidarśanam) - an apt illustration (illustration, example, demonstration)

(noun)

Nominative, neuter, singular of nidarśana

nidarśana - showing, demonstration, example, illustration, proof

kṛt suffix -ana

from `ni-√dṛś`

Prefix: ni

Root: dṛś (class 1)

तद्वत् (tadvat) - similarly (similarly, like that, accordingly)

(indeclinable)

adverbial suffix `vat` applied to `tad` (that)

मूर्तिषु (mūrtiṣu) - within forms (mūrti) (in forms, in bodies, in embodiments)

(noun)

Locative, feminine, plural of mūrti

mūrti - form, body, embodiment, idol, figure

from `√mūrc` (to thicken, coagulate)

Root: mūrc (class 1)

मूर्तिष्ठम् (mūrtiṣṭham) - that exists within forms (abiding in forms, standing in bodies)

(adjective)

Accusative, neuter, singular of mūrtiṣṭha

mūrtiṣṭha - standing in a form, abiding in a body/form

Compound of `mūrti` and `stha` (standing/abiding)

Compound type : saptamī-tatpuruṣa (mūrti+stha)

• mūrti – form, body, embodiment, idol, figure
  noun (feminine)
  from √mūrc (to thicken, coagulate)
  Root: mūrc (class 1)
• stha – standing, abiding, situated in
  adjective
  kṛt suffix -a
  from √sthā (to stand)
  Root: sthā (class 1)

Note: Agreeing with `jñeyam`.

ज्ञेयम् (jñeyam) - the knowable (jñeya) (what is to be known, the knowable)

(noun)

Accusative, neuter, singular of jñeya

jñeya - to be known, knowable, perceptible

Gerundive / Future Passive Participle

from `√jñā` with suffix `-ya`

Root: jñā (class 9)

Note: Used as a noun.

ज्ञानेन (jñānena) - through knowledge (jñāna) (by knowledge, by understanding)

(noun)

Instrumental, neuter, singular of jñāna

jñāna - knowledge (jñāna), wisdom, understanding

from `√jñā`

Root: jñā (class 9)

पश्यति (paśyati) - perceives (sees, beholds, perceives)

(verb)

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

present active

from `√dṛś` (1st class, P. `paśyati`)

Root: dṛś (class 1)

Note: The implied subject (e.g. "one") perceives.