योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-211, verse-19

तद्धि यादृशमेवासीत्तादृगेवावतिष्ठते ।
निर्विकारं यथा स्वप्ने व्योमैवाचलवद्भवेत् ॥ १९ ॥

taddhi yādṛśamevāsīttādṛgevāvatiṣṭhate ,
nirvikāraṃ yathā svapne vyomaivācalavadbhavet 19

19. tat hi yādṛśam eva āsīt tādṛk eva avatiṣṭhate
nirvikāram yathā svapne vyoma eva acalavat bhavet

19. tat hi yādṛśam eva āsīt tādṛk eva nirvikāram
avatiṣṭhate yathā svapne vyoma eva acalavat bhavet

19. Indeed, that (reality) remains just as it was, without change. Just as space (vyoma) itself appears immovable like a mountain in a dream.

Words meanings summery:

• तत् (tat) - that

• हि (hi) - indeed, for, because

• यादृशम् (yādṛśam) - of what kind, as it was

• एव (eva) - indeed, only, just

• आसीत् (āsīt) - it was, existed

• तादृक् (tādṛk) - of such a kind, like that

• एव (eva) - indeed, only, just

• अवतिष्ठते (avatiṣṭhate) - remains, stands, abides

• निर्विकारम् (nirvikāram) - changeless, immutable, without modification

• यथा (yathā) - just as, as

• स्वप्ने (svapne) - in a dream

• व्योम (vyoma) - space, sky

• एव (eva) - indeed, only, just

• अचलवत् (acalavat) - like a mountain, immovable

• भवेत् (bhavet) - would be, might exist

Words meanings and morphology

तत् (tat) - that

(pronoun)

Nominative, neuter, singular of tad

tad - that, this

हि (hi) - indeed, for, because

(indeclinable)

यादृशम् (yādṛśam) - of what kind, as it was

(adjective)

Nominative, neuter, singular of yādṛśa

yādṛśa - of what kind, as it was

एव (eva) - indeed, only, just

(indeclinable)

आसीत् (āsīt) - it was, existed

(verb)

3rd person , singular, active, imperfect past (laṅ) of as

Root: as (class 2)

तादृक् (tādṛk) - of such a kind, like that

(adjective)

Nominative, neuter, singular of tādṛś

tādṛś - of such a kind, like that

एव (eva) - indeed, only, just

(indeclinable)

अवतिष्ठते (avatiṣṭhate) - remains, stands, abides

(verb)

3rd person , singular, middle, present (laṭ) of avasthā

Prefix: ava

Root: sthā (class 1)

निर्विकारम् (nirvikāram) - changeless, immutable, without modification

(adjective)

Nominative, neuter, singular of nirvikāra

nirvikāra - changeless, immutable

Compound type : avyayībhāva (nis+vikāra)

• nis – without, free from
  indeclinable
• vikāra – change, modification, alteration
  noun (masculine)

Note: Used adverbially.

यथा (yathā) - just as, as

(indeclinable)

स्वप्ने (svapne) - in a dream

(noun)

Locative, masculine, singular of svapna

svapna - dream, sleep

व्योम (vyoma) - space, sky

(noun)

Nominative, neuter, singular of vyoman

vyoman - sky, space, ether

एव (eva) - indeed, only, just

(indeclinable)

अचलवत् (acalavat) - like a mountain, immovable

(indeclinable)

Formed by adding the 'vat' suffix (indicating similarity) to the adjective 'acala'. The base 'acala' (immovable) is a negative compound of 'a-' (not) and 'cala' (moving).

भवेत् (bhavet) - would be, might exist

(verb)

3rd person , singular, active, optative (liṅ) of bhū

Root: bhū (class 1)