"If you ever doubted that your feline companion has her own inner life, just watch what happens when she falls asleep, and loses conscious control of her physical being . . . a twitching of limbs, a quivering of the jaw, sometimes, perhaps, a snuffling noise or a meow.. . . Cats may indeed be capable of great mindfulness, but we are thinking beings too. In my own case, unfortunately, a being who thinks rather too much." In the latest installment...