Teddy

“Happiness can be found, even in the darkest of times, if one only remembers to turn on the light.”
― J.K. Rowling, Harry Potter and the Prisoner of Azkaban

“It's alright" said a dreamy voice from beside Harry as Ron vanished into the coach's dark interior. "You're not going mad or anything. I can see them too."
"Can you?" said Harry desperately, turning to Luna. He could see the bat-winged horses reflected in her wide, silvery eyes.
"Oh yes," said Luna, "I've been able to see them since my first year here. They've always pulled the carriages. Don't worry. You're just as sane as I am."
Smiling faintly, she climbed into the musty interior of the carriage after Ron. Not altogether reassured, Harry followed her.”
― J.K. Rowling, Harry Potter and the Order of the Phoenix

“Of course it is happening inside your head, Harry, but why on earth should that mean that it is not real?”
― J.K. Rowling, Harry Potter and the Deathly Hallows