Cassandra Clare said this quote

Shapes began to appear in the mist as it thickened. Clary saw herself and Simon as children, holding hands, crossing a street in Brooklyn; she had barrettes in her hair and Simon was adorably rumpled, his glasses sliding off his nose. There they were again, throwing snowballs in Prospect Park; and at Luke's farmhouse, tanned from summer, hanging upside down from tree branches. She saw them in Java Jones, listening to Eric's terrible poetry, and on the back of a flying motorcycle as it crashed into a parking lot, with Jace there, looking at them, his eyes squinted against the sun. And there was Simon with Isabelle, his hands curved around her face, kissing her, and she could see Isabelle as Simon saw her: fragile and strong, and so, so beautiful. And there was Valentine's ship, Simon kneeling on Jace, blood on his mouth and shirt, and blood at Jace's throat, and there was the cell in Idris, and Hodge's weathered face, and Simon and Clary again, Clary etching the Mark of Cain onto his forehead. Maureen, and her blood on the floor, and her little pink hat, and the rooftop in Manhattan where Lilith had raised Sebastian, and Clary was passing him a gold ring across a table, and an Angel was rising out of a lake before him and he was kissing Isabelle...