What does Leviticus 16:17 mean?

No one else is allowed in the tent while he’s doing this, from the moment he goes in to make things right until he comes out. After that, he’ll have made peace for himself, his family, and everyone in Israel. Leviticus 16:17 - Modern Text Bible

(The high priest works alone in God’s presence, representing everyone, and only when he’s finished can others come near.)