"It's hard to talk about the importance of an imaginary hero, but heroes are important. Heroes tell us something about ourselves. History books tell us who we used to be, documentaries tell us who we are now, but heroes tell us who we want to be... And a lot of our heroes depress me.
But when they made this particular hero they didn't give him a gun they gave him a screwdriver to fix things. They didn't give him a tank or a warship or an x wing fighter, they gave him a call box from which you can call for help. And they didn't give him a superpower or pointy ears or a heat ray they gave him an extra heart. They gave him two hearts.
And that's an extraordinary thing, there will never come a time when we don't need a hero like The Doctor."
The Doctor: "What's the point of having two hearts if you can't be forgiving once in a while?"
Clara: "You're going to help me?"
The Doctor: "Well, why wouldn't I help you?"
Clara: "Cos of what I just did! I..."
The Doctor: "You betrayed me. You betrayed my trust. You betrayed our friendship. You betrayed everything I ever stood for. YOU LET ME DOWN!"
Clara: "Then why are you helping me?"
The Doctor: "Why?"
The Doctor: "Do you think I care for you so little that betraying me would make a difference?"
This is the kind of life you've been invited into, the kind of life Christ lived. He suffered everything that came his way so you would know that it could be done, and also how to do it, step-by-step.