The Lifeblood of Egypt
The Nile river was considered the "lifeblood" because it offered water supply for the people. Even though sometimes the river could overflow and cause problems. The Nile river is the only water supply they would have. They had shadoofs that collected water from the Nile river and gave the people water.
The "Red land"
The Sahara desert was one of Egypt's hottest deserts. They consider them the "red land". The desert kept Egypt isolated from invaders, and the animals did not like being there. Sometimes, the desert would be able to provide water. The water helped living things stay alive.