In his book Healing Night (2006), the sleep psychologist Rubin Naiman tells of a game he played with his mother as a child

In his book Healing Night (2006), the sleep psychologist Rubin Naiman tells of a game he played with his mother as a child. She would ask: ‘What is the best thing in the world?’ Little Rubin would shout out guesses (Toys! Cartoons! Ice‑cream!) until she revealed the correct answer: ‘Night.’ Naiman’s mother had spent four years in a Nazi concentration camp; during that hellish sojourn, she had learned to cherish the hours of darkness as a promised land. ‘Night brought sleep,’ he writes, ‘a vital daily measure of peace. Sleep, in turn, served as a natural bridge to dreams. And dreaming opened a mysterious portal to a more malleable and compassionate reality.’ — Via Aeon.co.