Okay, little buddy! Imagine you’re playing a game with your friends, and there’s one person who is in charge. This person is called the captain! The captain is like the leader of the team.
When the captain gives instructions, everyone listens and follows what the captain says. If the captain says, 'Let’s run to the tree!', everyone runs to the tree because they trust and listen to the captain. So, when we say, 'Whatever he says, goes,' it means that everyone should follow what the captain decides. Does that make sense?