What does Leviticus 22:2 mean?

Tell them: If any of your descendants, while they're ritually unclean, comes near the sacred offerings that the Israelites dedicate to the Lord, that person must be cut off from God's presence. I am the Lord. Leviticus 22:2 - Modern Text Bible

(Priests must not handle offerings while they're ritually unclean. Doing so is a serious offense, breaking the connection between God and the community.)