योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-17, verse-30

भवभूमिषु भीमासु भावभावनवात्यया ।
मा पतोत्पातपूर्णासु दरीष्वन्तः करी यथा ॥ ३० ॥

bhavabhūmiṣu bhīmāsu bhāvabhāvanavātyayā ,
mā patotpātapūrṇāsu darīṣvantaḥ karī yathā 30

30. bhavabhūmiṣu bhīmāsu bhāvabhāvanavātyayā mā
pata utpātapurṇāsu darīṣu antaḥ karī yathā

30. bhāvabhāvanavātyayā karī yathā utpātapurṇāsu bhīmāsu darīṣu antaḥ (patati),
(tathā tvam) mā (tāsu) bhavabhūmiṣu pata

30. Do not fall into the dreadful realms of existence (saṃsāra), which are fraught with dangers, just as an elephant, driven by the strong winds of delusive thoughts and imaginations, falls into a ravine.

Words meanings summery:

• भवभूमिषु (bhavabhūmiṣu) - In the cycles of transmigration (saṃsāra) (in the realms of existence; in the states of being)

• भीमासु (bhīmāsu) - dreadful, terrible

• भावभावनवात्यया (bhāvabhāvanavātyayā) - by the strong wind of mental constructs/imaginations/delusive thoughts

• मा (mā) - Prohibitive particle (not, do not)

• पत (pata) - fall

• उत्पातपुर्णासु (utpātapurṇāsu) - full of calamities/dangers

• दरीषु (darīṣu) - in the caves, in the ravines, in the valleys

• अन्तः (antaḥ) - inside, within, into

• करी (karī) - A female elephant, but often used generally for elephant (an elephant)

• यथा (yathā) - Introduces a simile (just as, as, like)

Words meanings and morphology

भवभूमिषु (bhavabhūmiṣu) - In the cycles of transmigration (saṃsāra) (in the realms of existence; in the states of being)

(noun)

Locative, feminine, plural of bhavabhūmi

bhavabhūmi - Ground or realm of existence; state of being

Tatpurusha compound of bhava and bhūmi

Compound type : tatpurusha (bhava+bhūmi)

• bhava – Being, existence, becoming; the world of transmigration (saṃsāra)
  noun (masculine)
  From root bhū (to be)
  Root: bhū (class 1)
• bhūmi – Earth, ground, land, realm, stage
  noun (feminine)

Note: Location where one should not fall

भीमासु (bhīmāsu) - dreadful, terrible

(adjective)

Locative, feminine, plural of bhīma

bhīma - Terrible, dreadful, formidable, awful

From root bhī (to fear)

Root: bhī (class 3)

Note: Qualifies bhavabhūmiṣu and darīṣu

भावभावनवात्यया (bhāvabhāvanavātyayā) - by the strong wind of mental constructs/imaginations/delusive thoughts

(noun)

Instrumental, feminine, singular of bhāvabhāvanavātyā

bhāvabhāvanavātyā - A strong wind of ideas/imaginations/mental constructs

Tatpurusha compound

Compound type : tatpurusha (bhāva+bhāvana+vātyā)

• bhāva – State, condition, feeling, idea, thought
  noun (masculine)
  From root bhū (to be)
  Root: bhū (class 1)
• bhāvana – Imagination, conception, meditation, mental impression
  noun (neuter)
  From root bhū (to be) in causative
  Root: bhū (class 1)
• vātyā – Hurricane, strong wind, tempest
  noun (feminine)
  From root vā (to blow) + tya suffix
  Root: vā (class 2)

Note: Indicates the cause of falling

मा (mā) - Prohibitive particle (not, do not)

(indeclinable)

Prohibitive particle, usually used with imperative or injunctive

पत (pata) - fall

(verb)

2nd person , singular, active, imperative (loṭ) of pat

Imperative, active voice

From root pat (to fall), 1st class verb

Root: pat (class 1)

Note: The verb pata directly follows the negative mā

उत्पातपुर्णासु (utpātapurṇāsu) - full of calamities/dangers

(adjective)

Locative, feminine, plural of utpātapurṇa

utpātapurṇa - Full of portents, calamities, or dangers

Tatpurusha compound

Compound type : tatpurusha (utpāta+purṇa)

• utpāta – Calamity, disaster, omen, portent
  noun (masculine)
  From ud + root pat (to fall)
  Prefix: ud
  Root: pat (class 1)
• purṇa – Full, complete, filled with
  adjective (masculine)
  Past Passive Participle
  PPP of root pṛ (to fill)
  Root: pṛ (class 9)

Note: Qualifies darīṣu

दरीषु (darīṣu) - in the caves, in the ravines, in the valleys

(noun)

Locative, feminine, plural of darī

darī - Cave, cavern, ravine, valley

अन्तः (antaḥ) - inside, within, into

(indeclinable)

Preposition/adverb

करी (karī) - A female elephant, but often used generally for elephant (an elephant)

(noun)

Nominative, feminine, singular of karin

karin - Elephant (lit. 'having a trunk', kara)

From kara (trunk) + in (possessive suffix). Feminine form karī

Note: Subject of the simile, "as an elephant"

यथा (yathā) - Introduces a simile (just as, as, like)

(indeclinable)

Relative adverb