Family Retreat: Retreating to Where?

*"What makes this 'retreat' interesting, and why don't we need to bring anything?" Jon wondered as they left the driveway.* They didn't go very far, only downtown to a hotel. They parked and all gathered in a conference room with many other people. There was a registration desk where each person was given a nametag. Jon quickly found himself, with no idea what was going on, in a room with a "Hello, my name is Jon," nametag on his chest.