"The Doctor told him once that Amy had all of space and time pouring through her head -- which explains an awful lot, really, whenever Rory stops to think about it -- but it seems like maybe the TARDIS can protect her from the worst of it now. She remains a restless sleeper, and sometimes he stirs in the night to find that she's flung an arm across his chest like she's trying to defend him from harm."

These two sentences...just...*sigh* Perfect. <3