The clip Paul Atreides Tested Part 3 from Dune (1984) with Siân Phillips, Kyle MacLachlan
A human can resist any pain.
Our test is crisis and observation.
I see the truth of it.
Could he be the one? Maybe.
But will he be ours to control?
Tell me of your home world, Usul.
Do you know of the Water of Life?
The bile from the newborn worms of Arrakis?
I have heard of it.
It is very dangerous.
The Bene Gesserit sisterhood use it to see within.
There is a place terrifying to us,
It is said a man will come,
the Kwisatz Haderach.
He will go where we cannot.
Many men have tried.
They tried and failed?
They tried and died.
My son lives.
I sense your teachings in him.
Ignore the regular order of training.
His safety requires the Voice.
I've heard enough of my safety.
What about my father?
I heard your talking.
You speak as if he were dead. Well, he's not.
And he won't die. Tell me he won't die.
What can be done has been done.
Mother, tell me.