योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-62, verse-15

अचलं चलवद्दृष्टं ब्रह्मापूर्य व्यवस्थितः ।
अनादिमध्यपर्यन्तं सर्गो वृक्ष इवाम्बरे ॥ १५ ॥

acalaṃ calavaddṛṣṭaṃ brahmāpūrya vyavasthitaḥ ,
anādimadhyaparyantaṃ sargo vṛkṣa ivāmbare 15

15. acalam calavat dṛṣṭam brahma āpūrya vyavasthitaḥ
anādimadhyaparyantam sargaḥ vṛkṣaḥ iva ambare

15. brahma acalam calavat dṛṣṭam sargaḥ āpūrya
vyavasthitaḥ anādimadhyaparyantam ambare vṛkṣaḥ iva

15. Brahman (brahman), though unmoving, is perceived as if it were moving. Creation (sarga), having fully pervaded (all), is established, existing without beginning, middle, or end, like a tree in space.

Words meanings summery:

• अचलम् (acalam) - unmoving (Brahman) (unmoving, motionless, stable)

• चलवत् (calavat) - as if moving (Brahman) (as if moving, like moving)

• दृष्टम् (dṛṣṭam) - seen, perceived

• ब्रह्म (brahma) - Brahman (the Absolute reality)

• आपूर्य (āpūrya) - having fully pervaded (the universe) (having filled, having pervaded completely)

• व्यवस्थितः (vyavasthitaḥ) - established, situated, arranged

• अनादिमध्यपर्यन्तम् (anādimadhyaparyantam) - without beginning, middle, or end, boundless

• सर्गः (sargaḥ) - creation, emanation

• वृक्षः (vṛkṣaḥ) - tree

• इव (iva) - like, as, as if

• अम्बरे (ambare) - in the sky, in space

Words meanings and morphology

अचलम् (acalam) - unmoving (Brahman) (unmoving, motionless, stable)

(adjective)

Nominative, neuter, singular of acala

acala - unmoving, motionless, stable

Compound type : nañ-tatpuruṣa (a+cala)

• a – not, un-
  indeclinable
  negative prefix
• cala – moving, shaking, unsteady
  adjective (masculine)
  from root cal
  Root: cal (class 1)

Note: Refers to Brahman (implied)

चलवत् (calavat) - as if moving (Brahman) (as if moving, like moving)

(adjective)

Nominative, neuter, singular of calavat

calavat - moving, possessing motion, as if moving

present active participle

from root cal + vat-pratyaya

Root: cal (class 1)

Note: Refers to Brahman (implied)

दृष्टम् (dṛṣṭam) - seen, perceived

(adjective)

Nominative, neuter, singular of dṛṣṭa

dṛṣṭa - seen, perceived, observed

Past Passive Participle

from root dṛś

Root: dṛś (class 1)

Note: Predicative adjective for acalam/Brahman

ब्रह्म (brahma) - Brahman (the Absolute reality)

(noun)

Nominative, neuter, singular of brahman

brahman - the Absolute, the ultimate reality, the creative principle

Note: Subject for 'acalam' and 'calavat dṛṣṭam'

आपूर्य (āpūrya) - having fully pervaded (the universe) (having filled, having pervaded completely)

(indeclinable)

absolutive

from ā-pṛ (9P) + lyaP

Prefix: ā

Root: pṛ (class 9)

व्यवस्थितः (vyavasthitaḥ) - established, situated, arranged

(adjective)

Nominative, masculine, singular of vyavasthita

vyavasthita - established, situated, arranged, fixed

Past Passive Participle

from vi-ava-sthā (1P)

Prefixes: vi+ava

Root: sthā (class 1)

Note: Refers to sargaḥ

अनादिमध्यपर्यन्तम् (anādimadhyaparyantam) - without beginning, middle, or end, boundless

(adjective)

Accusative, neuter, singular of anādimadhyaparyanta

anādimadhyaparyanta - without beginning, middle, or end; boundless

Compound type : bahuvrīhi (a+ādi+madhya+paryanta)

• a – not, un-
  indeclinable
  negative prefix
• ādi – beginning
  noun (masculine)
• madhya – middle
  noun (neuter)
• paryanta – end, boundary
  noun (masculine)

Note: Adverbial use, modifying vyavasthitaḥ

सर्गः (sargaḥ) - creation, emanation

(noun)

Nominative, masculine, singular of sarga

sarga - creation, emanation, discharge, release

from sṛj (6P) with prefix sa

Prefix: sṛ

Root: sṛj (class 6)

Note: Subject of vyavasthitaḥ

वृक्षः (vṛkṣaḥ) - tree

(noun)

Nominative, masculine, singular of vṛkṣa

vṛkṣa - tree

इव (iva) - like, as, as if

(indeclinable)

अम्बरे (ambare) - in the sky, in space

(noun)

Locative, neuter, singular of ambara

ambara - sky, atmosphere, space, garment