ignorant; uneducated

vague

to dive

bold

against one's conscience

to risk one's life

obscure

the time just before daybreak

(idiom) to have never met sb before; entirely unacquainted

Samadhi (Buddhist term)

veiled

uncultured

to pick up money and not hide it (idiom); to return property to its owner

to dive under water hitting walls, to describe someone is very determined, going through hurdles and hardships

it goes against one's conscience

benighted (idiom)

shady relationship

stupid and ignorant (idiom)

copper-made diving suit

to blot out one's conscience

if I may be so bold

to venture to