What does 2 Samuel 12:3 mean?

But the poor man had nothing except one little lamb he bought and raised. It grew up with his kids, ate from his plate, drank from his cup, and slept in his arms. He loved it like a daughter. 2 Samuel 12:3 - Modern Text Bible

(The poor man’s relationship with the lamb is deeply personal and affectionate, showing how much it meant to him—this isn’t just livestock, it’s family.)