
Two moments experienced by every living thing. The Doctor: There are two events in everybody’s life that nobody remembers. But how long will I have to be here? Forever. I think this whole place is inside a closed energy loop. Every room, if I leave it long enough, reverts to its condition at the moment I arrive.

I saw the whole castle move, when I made the creature stop. Eighty-two minutes to eat, sleep and work. If I draw the creature to one extreme of the castle and I run to the other extreme, I can earn myself a maximum of 82 minutes. The Doctor: This is how my world works, Clara. The day you lose someone isn’t the worst. I didn’t leave Gallifrey because I was bored! That was a lie, it’s always been a lie! Not enough? You want more? I was scared! I ran because I was scared! Is that what you want me to say? Is that true enough for you? The Doctor: You see the problem is… Clara… there are truths that I can never tell. I have to tell truths I’ve never told before. It’s not just truth it wants, that’s not enough. This whole place is designed to terrify me. All of the knocking, but it’s never for you. Clearly you can’t make an actual psychic link with a door for one very obvious reason. Show me what you’ve got! I just watched my best friend die in agony. The Doctor: Come on! Chop chop! The Doctor will see you now. Or to put it another way, it’s dictatorship. The Doctor: What, are you gardeners? I hate gardening! What sort of a person has a power complex about flowers? It’s dictatorship for inadequates. Come out, show yourself, or keep on hiding. Clara said I shouldn’t take revenge. When the sun sets I’ll be able to establish an exact position by the stars. So I’m not more than a single lightyear from where I was. The Doctor: The equipment in that room, it’s consistent with an augmented ultra-long range teleport. I’m coming to find you, and I will never, ever stop.

So for your own sake, understand this: I am the Doctor. If you were any part of killing her, and you’re not afraid, then you understand nothing at all. The Doctor: If you think because she’s dead I’m weak, then you understand very little. And when, too late, you rise to go, you will notice a second shadow next to yours. You will sit too still or sleep too deep. One day, you will linger in the same place too long. Wherever you go, whatever path you take, it will follow. You begin your life, and it begins a journey towards you. The Doctor: As you come into this world, something else is also born.
