Harry Potter and the Sorcerer's Stone

Help will always be given at Hogwarts to those who ask for it.

Grief, it seemed, drove Voldemort out . . . though Dumbledore, of course, would have said that it was love. . . .

“His mother left upon him the traces of her sacrifice. . . . This is old magic, I should have remembered it, I was foolish to overlook it . . . but no matter. I can touch him now.”

‘Of course it is happening inside your head, Harry, but why on earth should that mean that it is not real?’