योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-50, verse-33

बाल्ययौवनवृद्धेषु दुःखेषु च सुखेषु च ।
जाग्रत्स्वप्नसुषुप्तेषु स्वसंवित्तिपरो भव ॥ ३३ ॥

bālyayauvanavṛddheṣu duḥkheṣu ca sukheṣu ca ,
jāgratsvapnasuṣupteṣu svasaṃvittiparo bhava 33

33. bālyayauvanavṛddheṣu duḥkheṣu ca sukheṣu ca
jāgratsvapnasuṣupteṣu svasaṃvittiparaḥ bhava

33. bālyayauvanavṛddheṣu duḥkheṣu ca sukheṣu ca
jāgratsvapnasuṣupteṣu svasaṃvittiparaḥ bhava

33. Be intent on your own self-awareness (svasaṃvitti) throughout childhood, youth, and old age, in both sorrows and joys, and during the states of waking, dreaming, and deep sleep.

Words meanings summery:

• बाल्ययौवनवृद्धेषु (bālyayauvanavṛddheṣu) - in childhood, youth, and old age

• दुःखेषु (duḥkheṣu) - in sorrows, in pains, in sufferings

• च (ca) - and, also

• सुखेषु (sukheṣu) - in joys, in happiness, in pleasures

• च (ca) - and, also

• जाग्रत्स्वप्नसुषुप्तेषु (jāgratsvapnasuṣupteṣu) - in waking, dreaming, and deep sleep states

• स्वसंवित्तिपरः (svasaṁvittiparaḥ) - intent on one's own consciousness/self-awareness

• भव (bhava) - be, become

Words meanings and morphology

बाल्ययौवनवृद्धेषु (bālyayauvanavṛddheṣu) - in childhood, youth, and old age

(noun)

Locative, neuter, plural of bālyayauvanavṛddha

bālyayauvanavṛddha - childhood, youth, and old age

Compound type : dvandva (bālya+yauvana+vṛddha)

• bālya – childhood, infancy
  noun (neuter)
  Derived from bāla (child).
• yauvana – youth, adolescence
  noun (neuter)
  Derived from yuvan (young).
• vṛddha – old age, aged; grown, increased
  noun (neuter)
  Past Passive Participle
  From root vṛdh (to grow).
  Root: vṛdh (class 1)

दुःखेषु (duḥkheṣu) - in sorrows, in pains, in sufferings

(noun)

Locative, neuter, plural of duḥkha

duḥkha - sorrow, pain, suffering, misery

च (ca) - and, also

(indeclinable)

सुखेषु (sukheṣu) - in joys, in happiness, in pleasures

(noun)

Locative, neuter, plural of sukha

sukha - joy, happiness, pleasure, ease

च (ca) - and, also

(indeclinable)

जाग्रत्स्वप्नसुषुप्तेषु (jāgratsvapnasuṣupteṣu) - in waking, dreaming, and deep sleep states

(noun)

Locative, neuter, plural of jāgratsvapnasuṣupta

jāgratsvapnasuṣupta - the states of waking, dreaming, and deep sleep

Compound type : dvandva (jāgrat+svapna+suṣupta)

• jāgrat – waking, awake
  noun (neuter)
  Present Active Participle
  From root jāgṛ (to wake).
  Root: jāgṛ (class 2)
• svapna – dream, sleep
  noun (masculine)
  From root svap (to sleep).
  Root: svap (class 2)
• suṣupta – deep sleep, asleep
  noun (neuter)
  Past Passive Participle
  From root svap (to sleep) with su- prefix (implies good/deep sleep).
  Prefix: su
  Root: svap (class 2)

स्वसंवित्तिपरः (svasaṁvittiparaḥ) - intent on one's own consciousness/self-awareness

(adjective)

Nominative, masculine, singular of svasaṃvittipara

svasaṁvittipara - devoted to one's own consciousness, intent on self-awareness

Compound type : tatpuruṣa (svasaṃvitti+para)

• svasaṃvitti – self-awareness, one's own consciousness
  noun (feminine)
  sva (own) + saṃvitti (consciousness/awareness, from root vid to know)
  Prefix: saṃ
  Root: vid (class 2)
• para – supreme, highest, excellent; intent on, devoted to
  adjective (masculine)

Note: The adjective describes the implicit subject 'you'.

भव (bhava) - be, become

(verb)

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

Root: bhū (class 1)