योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-71, verse-40

अपामवनतं स्थानमास्पदं भूतले यथा ।
अन्तःकरणमेवात्मसंविदामास्पदं तथा ॥ ४० ॥

apāmavanataṃ sthānamāspadaṃ bhūtale yathā ,
antaḥkaraṇamevātmasaṃvidāmāspadaṃ tathā 40

40. apām avanatam sthānam āspadam bhūtale yathā
antaḥkaraṇam eva ātmasaṃvidām āspadam tathā

40. yathā bhūtale apām avanatam sthānam āspadam
tathā antaḥkaraṇam eva ātmasaṃvidām āspadam

40. Just as a low place on the earth's surface is the receptacle for waters, similarly, the internal organ (antaḥkaraṇa) is indeed the receptacle for awareness of the self (ātman).

Words meanings summery:

• अपाम् (apām) - of waters

• अवनतम् (avanatam) - low, descended, submerged

• स्थानम् (sthānam) - place, location, position

• आस्पदम् (āspadam) - abode, receptacle, seat, place

• भूतले (bhūtale) - on the earth's surface

• यथा (yathā) - just as, as, like

• अन्तःकरणम् (antaḥkaraṇam) - internal organ, mind, intellect

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

• आत्मसंविदाम् (ātmasaṁvidām) - of self-awareness, of self-knowledge, of consciousness of the self

• आस्पदम् (āspadam) - abode, receptacle, seat, place

• तथा (tathā) - similarly, so, thus

Words meanings and morphology

अपाम् (apām) - of waters

(noun)

Genitive, feminine, plural of ap

ap - water, waters

Note: Irregular feminine noun.

अवनतम् (avanatam) - low, descended, submerged

(adjective)

Nominative, neuter, singular of avanata

avanata - descended, low, bowed down, submerged

Past Passive Participle

Derived from root 'nam' with prefix 'ava'

Prefix: ava

Root: nam (class 1)

स्थानम् (sthānam) - place, location, position

(noun)

Nominative, neuter, singular of sthāna

sthāna - place, site, position, abode

Root: sthā (class 1)

आस्पदम् (āspadam) - abode, receptacle, seat, place

(noun)

Nominative, neuter, singular of āspada

āspada - place, receptacle, seat, abode, object

Root: pad (class 4)

भूतले (bhūtale) - on the earth's surface

(noun)

Locative, neuter, singular of bhūtala

bhūtala - earth's surface, ground, terrestrial region

Compound type : tatpurusha (bhūta+tala)

• bhūta – earth, element, being, created
  noun (neuter)
  Root: bhū (class 1)
• tala – surface, level, ground, flat part
  noun (neuter)

यथा (yathā) - just as, as, like

(indeclinable)

अन्तःकरणम् (antaḥkaraṇam) - internal organ, mind, intellect

(noun)

Nominative, neuter, singular of antaḥkaraṇa

antaḥkaraṇa - internal organ (mind, intellect, ego, citta), inner sense

Compound type : tatpurusha (antar+karaṇa)

• antar – internal, inside, within
  indeclinable
• karaṇa – instrument, faculty, making, action
  noun (neuter)
  From root 'kṛ' (to do, make)
  Root: kṛ (class 8)

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

(indeclinable)

Note: An emphasizing particle.

आत्मसंविदाम् (ātmasaṁvidām) - of self-awareness, of self-knowledge, of consciousness of the self

(noun)

Genitive, feminine, plural of ātmasaṃvid

ātmasaṁvid - self-awareness, self-knowledge, consciousness of the self

Compound type : tatpurusha (ātman+saṃvid)

• ātman – self, spirit, soul, essential nature
  noun (masculine)
• saṃvid – knowledge, intelligence, consciousness, awareness
  noun (feminine)
  From root 'vid' (to know) with prefix 'sam'
  Prefix: sam
  Root: vid (class 2)

आस्पदम् (āspadam) - abode, receptacle, seat, place

(noun)

Nominative, neuter, singular of āspada

āspada - place, receptacle, seat, abode, object

Root: pad (class 4)

Note: This is the second instance of 'āspadam' in the verse, used as the predicate nominative.

तथा (tathā) - similarly, so, thus

(indeclinable)

Note: Corresponds to 'yathā'.