An animal’s love is deep, uncomplicated, unconditional, and forgiving. “Affection without ambivalence” is how Sigmund Freud described the connection. “No matter how awful the day, or how awful I am behaving at any given moment, George doesn’t care,” writes journalist John Dickerson. “He finds me smoldering in my chair and dashes to my lap.” Our lives are intricately intertwined with our pets, and together, over time, we establish rituals that are as steady as a metronome. It’s no wonder the grief is crushing when they depart—even those who’ve had time to prepare describe feeling stunned, devastated, and cracked in two.