What is the most resilient parasite?
A bacteria? A virus?
An intestinal worm?
An idea.
Resilient. Highly contagious.
Once an idea has taken hold of the brain, it's almost impossible to eradicate.
An idea that is fully formed, fully understood, that sticks.
— Mr. Saito, we can train your subconscious to defend itself from even the most skilled extractor.
— How can you do that?
— Because I am the most skilled extractor.
— What do you feel?
— Guilt.
— I feel guilt, Mal. And no matter what I do, no matter how hopeless I am....no matter how confused, that guilt is always there...reminding me of the truth.
— Have you come to kill me? I am waiting for someone.
— Someone from a half-remembered dream.
— Cobb? Impossible. We were young men together. I am an old man.
— Filled with regret.
— Waiting to die alone.
— I have come back for you. To remind you of something. Something you once knew. That this world is not real.
— To convince me to honor our arrangement?
— To take a leap of faith, yes.
— Come back...so we can be young men together again.