What does Deuteronomy 34:1 mean?

Moses went up from the plains of Moab to Mount Nebo, to the top of Pisgah, across from Jericho. The Lord showed him the whole land: Gilead as far as Dan, Deuteronomy 34:1 - Modern Text Bible

(Moses climbs Mount Nebo, where God lets him see the entire promised land, even though he won’t enter it himself.)