Yes. The pyramids were too obvious to burglars so they made secret under ground caverns to bury the body.
The Ancient Egyptian pyramids were not places for people to live. They were places where Pharaohs (similar to Kings) were buried.
Pharaohs have been buried in difference places. Some were buried in tombs that were build into the ground and in mounds. Others were buried in monumental tombs, like the pyramids.
One of the places where a lot of the dead are buried are in the pyramids. This is the system the Egyptians used to bury their dead.
They were buried in all sorts of places like in Pyramids and under ground tombs like nower days. They were also put in wooden/gold/silver/etc coffins or had a death mask made if they were a Pharaoh... But the question is Were all Egyptians buried?
In the pyramids in the north near Cairo or the tombs in the south near Luxor.
Pyramids were built as burial places for kings and queens. It is believed to have represented a stairway for the king to ascend to the heavens.
One of the places where a lot of the dead are buried are in the pyramids. This is the system the Egyptians used to bury their dead.
The ancient pyramids mattered to the Egyptians because they usually contain the burial places of pharoahs, queens and etc. However, other pyramids like the three pyramids in Giza, do not have an entrance. An entrance has not been found for those (without destroying the pyramid) and is believed to contain something important. The pyramids are also important because they represent one of history's greatest architectual acomplishments.
Pyramids were burial places for the Pharaohs
The Egyptians built the pyramids as buril places for the pharoahs.
Egypt and other places
No mummy has ever been officially discovered in a Pyramid. There are separate buildings that house mummies and these are called mastabas. And the Pharaohs were buried mostly in special places like the valley of the kings which is in the Egyptian dessert. It is only a theory that the pyramids have anything to do with the afterlife or burial. We do not know what the Pyramids were built for.